Tesway X9 Ultra Review Canada (2026): Real-World Range, Computed

Zeus stands on a frosted granite ridge above a misty lake in Ontario's Haliburton Highlands beside an orange Tesway X9 Ultra at sunrise, a Playcut rendering, under the headline Two motors hold 43.5 km/h up a 10% grade

Zeus on a private granite ridge in Ontario's Haliburton Highlands with an orange Tesway X9 Ultra: a Playcut.ai rendering made from Tesway's own photograph of the bike.

1,800 Wh60 V × 30 Ah, Tesway Canada's pack
118 kmAt 25 km/h, flat, 80 kg, one motor, 20% kept (modelled)
59.9 km/hTop speed on two motors, flat, 80 kg (modelled)
$2,999CAD at Zeus, free shipping across Canada

Tesway's X9 Ultra puts a hub motor in each wheel, a 60 V battery and full suspension on 26-inch fat tires, and Zeus sells it at $2,999 in Orange, Blue, Black and Camo. Every specification below is Tesway's own, read on 26 October 2026 from its Canadian and US pages and the owner's manual it links; every store term is Zeus's, read the same day; and every range, speed and climbing figure we give is computed from published physics, with the arithmetic printed so you can check it.

Quick Answer: Tesway X9 Ultra review, Canada

The Tesway X9 Ultra is a $2,999 dual-motor, full-suspension fat-tire e-bike: two hub motors that Tesway Canada rates at 1,200 W each (2,400 W together) and 240 N·m combined, a 60 V 30 Ah pack of about 1,800 Wh, 26 × 4.0 Kenda tires and four-piston hydraulic brakes. On level pavement an 80 kg rider covers about 148 km at a steady 25 km/h on one motor, or 118 km if you recharge at 20%, as Tesway's manual recommends. On a mixed real day (30 km/h, 100 kg aboard, 10 °C, stops, wind, half on gravel) plan on about 54 km. On two motors it holds about 59.9 km/h on the flat in our model; Tesway prints 69 to 70 km/h. At 2,400 W it sits outside every provincial and territorial e-bike rule, so it is a machine for private land and for trails whose managers allow it. See every dual-motor e-bike at Zeus.

How this review was verified

We read Tesway Canada's X9 Ultra page with every tab opened, its product record and its size drawing (looked at as an image), Tesway's US page for the same bike, the X9 Ultra owner's manual Tesway links (dated April 2026), Tesway's FAQ and warranty pages, and our own listing and policies, all on 26 October 2026. We compared that read with the copy of Tesway's page we saved on 17 October 2026, which is how we know which figures Tesway changed in between.

The range, speed and climbing figures come from the physics model in the review of this bike by our US sister store, RedTail eBikes (its range model), imported unchanged and set to Tesway Canada's figures, kilometres and Canadian temperatures: the road-power equation of Martin and colleagues, a published hub-motor curve at Tesway's own ratings, measured battery losses and measured cold-cell data, with wind, stops and gravel added and checked against the model's own equations. Three independent YouTube tests of the X9 Ultra are set against it. The fit figures are RedTail's run of 6,068 measured bodies on Tesway's drawing (its fit section); the law table quotes each province's and territory's statute or regulator, re-read on 26 October 2026 (30 of 30 passages found); the recall check ran against Health Canada and the US CPSC with controls. We did not ride a pack flat ourselves: this is a computed review, and its limits are listed. Zeus sells this bike, so weigh the red flags as carefully as the green. Written by Milad Ghobadibeygvand, BScN (Western University, 2014); corrections to milad@zeusebikes.ca.


▶ Tesway's own video

"TESWAY X9 Ultra Unboxing Assembly", published by Tesway's own channel on 17 October 2025 (5 min 24 s): the unboxing and the final assembly steps. Watch on YouTube.

What the X9 Ultra is, and who it suits

Between 17 October 2026 and 26 October 2026, Tesway Canada changed the X9 Ultra's page: the range in its product text went from "up to 193 km" to "up to 161 km", and the spec-tab weight from 48 to 53 kg.

Plan a day on a headline its maker revised within nine days and you can run short on a 53 kg bike that 75 W of steady pedalling moves at about 13.7 km/h at best once the battery is done. This review turns Tesway's figures into your own range and climbing speed at your speed, load, ground and temperature, in either motor mode, and prints the arithmetic.

The X9 Ultra puts a hub motor in each wheel, rated by Tesway Canada at "60V 1200W x 2" with "Peak 60V 2000W x 2", under an aluminium step-over frame with a dual-crown fork and rear suspension, on 26 × 4.0 Kenda tires with four-piston hydraulic brakes. Tesway calls it a "Dual-motor 4000W drive E-MTB, built for mountain trails and extreme climbs", and its FAQ says "The latest X9 Ultra has been upgraded to a 60V high-voltage system": the earlier X9 AWD was a 48 V build (RedTail's overview of the bike), and Tesway's X9 AWD web address now opens the X9 Ultra.

Tesway X9 Ultra in Orange from the side: step-over frame, round caged headlight, rear rack, 26 by 4.0 Kenda tires, hub motors in both wheels
The X9 Ultra in Orange, as it appears on our listing: the step-over frame, the round headlight on the fork, the rear rack and the hub motor in each 26-inch wheel.

It suits three riders:

  • the one with ground to cover off the road: a farm, a lease, a camp, a cottage property or a trail network whose manager allows a 2,400 W machine;
  • the one who climbs: two motors share each hill, and the climbing section shows what that buys;
  • the heavier rider or the one carrying gear, inside a 180 kg payload read as the rider plus gear.

It does not suit anyone who needs a bike for public roads, bike lanes or paths, because at 2,400 W it sits outside every provincial and territorial e-bike rule (the law section), and it is a poor fit for most riders over about 168 cm, because its saddle tops out at 97 cm from the ground (the fit section).

Tesway X9 Ultra at Zeus

$2,999 in Orange, Blue, Black or Camo. Free shipping across Canada, Tesway's 2-year warranty backed by Tesway in full, and Zeus handles the claim. The listing shows today's included gifts.

See the X9 Ultra

Tesway's specification, as printed

Tesway Canada prints two hub motors rated 1,200 W each with a 2,000 W peak each, 120 N·m each, a 60 V 30 Ah battery, 53 kg, a 180 kg payload, a 25 km/h default speed and a top speed of 69 or 70 km/h.

Where two of Tesway's own figures disagree, the table gives both, and a later section lists every pair with the date we read it.

What Tesway prints Where (read 26 October 2026)
Motors Two hub motors, front and rear (the manual: "equipped with dual motors at both the front and the rear for driving"); "Motor 60V 1200W x 2 | Peak 60V 2000W x 2" in the specs table; the spec tab adds the peaks together: "Rated Power 60V 1200W | Peak Power 60V 4000W" CA page; manual
Torque 120 N·m per motor, 240 N·m together ("Torque 120 N·m x 2") CA specs table
Battery 60 V 30 Ah, about 1,800 Wh; "Equipped with a high-capacity 60V 30Ah Samsung battery" CA page
Charger and charge time "Charger 67.2V 3A"; "Charging Time About 7 hours"; the manual: 6 hours from completely discharged CA specs table; manual
Range, Tesway 113 to 161 km (highlights); the two motor modes printed one way in the text and the other way in the spec tab; "up to 193 km" in the FAQ CA highlights, text, tab, FAQ
Top speed and default speed "Max Speed-69 KM/H" and "Default Speed-25 KM/H" (spec tab); 70 km/h (highlights, specs table); "Up to 43 MPH" (headline) CA page
Assist and controls Five assist levels plus 0, half-twist throttle, cruise control, walk assist at 6 km/h; the Info key switches one motor or two manual
Fork and rear "120mm dual-crown motorcycle fork" (text), "Front Hydraulic Fork" (spec tab); "Rear Spring Suspension" (spec tab), "dual rear shocks" (text) CA page
Brakes Four-piston hydraulic, front and rear; rotors 180 × 2.3 mm in the text, 203 × 2.3 mm in the spec tab CA page
Tires and drivetrain 26 × 4.0 Kenda fat tires; Shimano 7-speed; 52T chainring with a cover CA spec tab
Display and lights Colour LCD with NFC unlock and "a USB charging port"; a 900-lumen headlight with a horn; "Light-Front & Rear Light" in the spec tab CA page
Weight and payload 53 kg ("EBike Weight-53 KG"); 180 kg ("Max. Payload Capacity-180 KG") CA spec tab and drawing
Water "X9 Ultra ebikes are IPX6 water-resistant, making them safe to ride in light rain" (Tesway's FAQ) CA FAQ
Frame and size Aluminium alloy frame; riders 160 to 196 cm; saddle 81 to 97 cm from the ground; standing height 71 cm; wheelbase 124 cm; length 198 cm; tire diameter 74 cm CA drawing
In the box The e-bike, manual, toolkit, battery, charger, headlight, display, front and rear fenders, two reflectors, horn, seat, two NFC cards and pedals; its icon row adds two keys CA box list

Tesway Canada's X9 Ultra page, every tab opened, and its manual, read on 26 October 2026. Tesway's US page prints the same motors, battery, charger, weight and payload; its range is in miles and its default speed is 15 mph.

Takeaway: Two 1,200 W hubs, a 1,800 Wh pack and full suspension on 26-inch fat tires. Tesway prints its range three ways and its top speed two ways, so the sections below compute both from the parts it does print consistently.

Two hub motors, one key between them

The X9 Ultra carries a hub motor in each wheel, rated 1,200 W and 120 N·m each, with a 2,000 W peak each. The manual says "Press the Info key to switch between Single and Dual Drive modes".

On one motor the rear hub drives (the Ontario testers' range run used "only the rear motor"); on two they share the work. Neither mode always wins: one motor costs less on the flat at everyday speeds, and two cost less on hills and at higher speeds.

The rated figure is what each hub carries steadily; the peak is the short burst the system allows on top, and the law reads the rating (the law section). Each hub turns at its wheel's speed whatever gear you choose, so the seven gears set your pedalling cadence and nothing else; our hub and mid-drive guide explains why that matters on a climb.

What Tesway does not say:

Whether the hubs are geared or direct-drive: neither the X9 Ultra's pages nor its manual say. In single mode the model lets the unpowered front hub turn freely; if it drags, one motor costs a little more than the table shows.

Your ride One motor Two motors Two against one
15 km/h, flat 8.3 Wh 8.7 Wh +5%
25 km/h, flat 12.2 Wh 12.3 Wh +1%
30 km/h, flat 15.0 Wh 14.9 Wh −1%
40 km/h, flat 22.7 Wh 21.8 Wh −4%
15 km/h, 4% grade 37.7 Wh 31.4 Wh −17%
25 km/h, 4% grade 38.2 Wh 33.1 Wh −13%
15 km/h, 8% grade 83.3 Wh 61.9 Wh −26%
25 km/h, 8% grade 75.4 Wh 59.4 Wh −21%

Battery watt-hours per kilometre for an 80 kg rider on the throttle, 25 °C, still air, from the model. It shares torque evenly between the hubs, which Tesway does not describe. The same model, in miles, gives RedTail's one-motor and two-motor table the same split.

Why two motors win on a climb: each hub's losses grow with the square of its current, so two hubs at half the torque each waste less than one hub doing it all. On the flat at 15 to 25 km/h the load is light, and the second hub's own running losses cost more than the sharing saves. So ride the flat on one motor below about 30 km/h, and press the Info key before a climb, a heavy load or a fast stretch.

The half-twist throttle moves the bike without pedalling; in the manual's words, cruise control "will be triggered by long-press the minus key to activate in the pure electric mode", and braking, pedalling or the throttle releases it. Pedal assist runs from 0 to 5, and walk assist pushes the bike at a constant 6 km/h while you hold the key.

Takeaway: One motor for flat ground under about 30 km/h; two for hills, heavy loads and anything faster. The Info key on the display switches between them.

The battery: 60 V, 30 Ah, and charging

The pack is 60 V and 30 Ah, about 1,800 watt-hours, and Tesway names Samsung for it ("Equipped with a high-capacity 60V 30Ah Samsung battery"). It locks into the frame with a key and a safety pin, and the manual asks you to start charging below 20% and to keep it between 0 and 40 °C for use, storage and charging. Plan on at least 10 hours to charge it from empty on the 3 A charger.

That last figure is arithmetic, and it disagrees with Tesway. A 3 A charger puts back at most 3 amp-hours an hour, so 30 Ah takes at least 10 hours from empty and 8 hours from 20%. Tesway prints "Charging Time About 7 hours" in its specs table, and its manual says "If a battery is completely discharged, it will take 6 hours to be fully recharged". Either would need a charger of about 4.3 to 5 A.

Takeaway: Read your charger's label when the bike arrives and plan overnight charges: at least 10 hours from empty.

Over its life, the manual says that "Under normal use, the battery will undergo 600 charging and discharging cycles", and that a pack left unused should be charged fully and recharged every month. Tesway's FAQ says its packs have "built-in mechanisms that protect them from overcharging". While it charges, the manual says to keep the charger and battery away from "flammable substances" and small children, and not to charge "in unattended condition for a long time"; our battery guide covers charging and storage at home and in an apartment.

The cold:

The manual's window starts at 0 °C. Our model's 25 km/h ride on one motor falls from 148 km at 25 °C to 115 km at 0 °C, because the cells hold less energy cold and the tires roll harder. Below 0 °C you are outside the window the manual gives for use, storage and charging, so keep the pack indoors.

Questions before you buy?

Call 1-866-938-7580 or email sales@zeusebikes.ca: tell us your weight, your ground and how far you ride, and we will run them through this model.

See the X9 Ultra at Zeus

How far the X9 Ultra goes on one charge, computed

On level pavement at 25 °C, an 80 kg rider covers about 148 km at a steady 25 km/h on one motor, 110 km at 32 km/h and 79 km at 40 km/h, using the whole pack; Tesway's manual recommends recharging at 20%. On a mixed real day, plan on about 54 km.

Speed, pedalling, hills, load, cold, wind, stops and gravel each move the figure, and the tables below show by how much.

Each table that follows is a model result, built on Tesway Canada's own numbers: 1,800 Wh, 53 kg, a 74 cm tire, 1,200 W and 120 N·m per motor, and a 69 km/h top speed. The physics is the model in RedTail's review of this bike (its range section), imported unchanged; it gives the same per-kilometre costs in miles. The worked example at the end of this section repeats one row by hand.

Speed and motor mode

Steady speed One motor: full pack (20% kept) Two motors: full pack (20% kept)
15 km/h 217 km (173 km) 207 km (165 km)
20 km/h 181 km (145 km) 176 km (141 km)
25 km/h 148 km (118 km) 146 km (117 km)
30 km/h 120 km (96 km) 121 km (97 km)
32 km/h 110 km (88 km) 112 km (90 km)
35 km/h 97 km (78 km) 100 km (80 km)
40 km/h 79 km (63 km) 83 km (66 km)
45 km/h 65 km (52 km) 69 km (55 km)
50 km/h past one motor's rating 57 km (46 km)
55 km/h past one motor's rating 48 km (38 km)

An 80 kg rider on the throttle, level pavement, 25 °C, still air, the fat-tire median rolling resistance, the full 1,800 Wh. One motor cannot hold 50 km/h at its rating; two hold about 59.9 km/h on the flat.

Speed and pedalling are the two levers you hold. On speed, 181 km at 20 km/h falls to 79 km at 40 km/h on one motor, because the power to push air rises with the cube of speed. Below about 30 km/h one motor goes a little further; above it, two do.

Pedalling

Steady speed One motor, throttle One motor, 75 W pedalling One motor, 150 W Two motors, throttle Two motors, 75 W
20 km/h 181 km 363 km your legs alone 176 km 312 km
25 km/h 148 km 222 km 409 km 146 km 207 km
32 km/h 110 km 138 km 181 km 112 km 136 km
40 km/h 79 km 90 km 104 km 83 km 93 km

Full pack, 80 kg rider, level pavement, 25 °C. 75 W and 150 W are steady efforts from your legs. Where a cell says your legs alone, 150 W holds that speed with the motor off.

Adding 75 W from your legs takes the 25 km/h ride on one motor from 148 to 222 km. On their own, those 75 W move the 53 kg bike and an 80 kg rider at about 13.7 km/h on the flat, and 150 W at about 20.4 km/h, which is your speed home if the pack runs flat, less whatever drag the two unpowered hubs add.

Takeaway: At 25 km/h on one motor, the full pack covers about 148 km of level pavement (118 km with 20% kept). Add 75 W of pedalling and it reaches about 222 km; ride at 40 km/h and it falls to about 79 km.

Four real days

No ride holds one speed on level pavement in still air. These four days mix the conditions the single-condition tables take one at a time, each computed in one run of the model rather than multiplied together.

Day Conditions One motor: full pack (20% kept) Two motors: full pack (20% kept)
An easy day 20 km/h, 80 kg aboard, 20 °C, 1 gentle stop a km, still air, half on fine gravel 142 km (114 km) 141 km (113 km)
A mixed day 30 km/h, 100 kg aboard, 10 °C, 2 gentle stops a km, a 10 km/h wind out and back, half on fine gravel 67 km (54 km) 69 km (55 km)
A mixed day, with pedalling the mixed day with 75 W from your legs 79 km (63 km) 79 km (63 km)
A hard day 40 km/h, 140 kg aboard, 0 °C, 3 hard starts a km, a 20 km/h wind out and back, half on coarse gravel one motor cannot hold 40 km/h into that wind 25 km (20 km)

Each day is one model run: half the distance into the wind and half with it; the gravel share at Meyer and colleagues' measured ratio; each stop's start from rest on the motors' own limits; the pack's energy at that air temperature.

Plan from the mixed day: about 54 km on one motor and 55 km on two, with 20% kept. Its two stops a kilometre cost the most, then its 30 km/h, then the 10 °C air; the wind and the extra 20 kg take less, and the gravel least. Add 75 W of pedalling and the plan rises to about 63 km.

Tesway's figures, as steady rides

Tesway prints its range three ways and gives no speed, rider weight or ground for any of them: 113 to 161 km in its highlights, "113–161 km on a single motor or 80–113 km on dual motors" in its text (its spec tab assigns the two bands the other way round), and "up to 193 km" in its FAQ, which also says "For maximum range, use a lower PAS level and minimal throttle and dual motor mode".

A feature heading on the same page still reads "Up to 120 Miles" (about 193 km) above copy that gives 161 km. On the FAQ's motor-mode advice the model differs: on the flat below about 30 km/h, one motor goes slightly further (the motor section). The table turns each figure into the steady speed that delivers it.

Tesway's figure Energy it allows per km One motor, throttle One motor, 75 W pedalling Two motors, throttle
80 km 22.5 Wh 39.8 km/h 42.6 km/h 40.9 km/h
113 km 15.9 Wh 31.4 km/h 35.6 km/h 31.8 km/h
161 km 11.2 Wh 23.0 km/h 29.5 km/h 22.5 km/h
193 km 9.3 Wh 18.4 km/h 26.9 km/h 17.3 km/h

The steady speed at which the full 1,800 Wh lasts that distance for an 80 kg rider, level pavement, 25 °C, still air. Tesway publishes no test conditions for the X9 Ultra; on 17 October 2026 its page printed 193 km where on 26 October 2026 it printed 161 km.

So Tesway's 161 km is what the physics gives at a steady 23.0 km/h on the throttle, or about 29.5 km/h with 75 W of pedalling, on level pavement in still, mild air. Its FAQ's 193 km needs about 18.4 km/h on one motor. The lower band's 80 km is roughly a steady 40 km/h.

Hills

Climbing costs the energy to lift you and the bike, plus the motors' extra losses at high torque. At 16 km/h, each 100 m of height costs about 56 to 70 Wh on two motors on grades of 4 to 10%, and 72 to 102 Wh on one, on top of what the same distance costs on the flat: the lift alone is 36 Wh at the wheel for 133 kg, and the rest is loss, which two motors cut by 45 to 48%.

Steady grade One motor at 16 km/h, full pack Two motors at 16 km/h, full pack Fastest it holds, one motor Fastest it holds, two motors
4% 48 km 58 km 38.9 km/h 55.4 km/h
6% 31 km 40 km 34.1 km/h 51.2 km/h
8% 22 km 29 km 28.5 km/h 47.2 km/h
10% 16 km 23 km 21.6 km/h 43.5 km/h
12% cannot hold it 18 km 14.3 km/h 39.9 km/h
15% cannot hold it 13 km 3.5 km/h 35.4 km/h

An 80 kg rider on the throttle, 25 °C. A distance on a steady grade is uphill all the way; a real route returns some of it on the way down, since nothing is regenerated but the descent costs almost nothing.

Takeaway: Climb on two motors. Up a 10% grade they hold 43.5 km/h where one holds 21.6 km/h, and they spend 22 to 31% less of the pack on each 100 m of height.

Rider and load

Rider plus cargo One motor, 25 km/h flat Two motors, 25 km/h flat One motor, 16 km/h up 8% Two motors, 16 km/h up 8%
60 kg 158 km 155 km 28 km 36 km
80 kg 148 km 146 km 22 km 29 km
100 kg 138 km 138 km 18 km 25 km
120 kg 130 km 131 km 15 km 21 km
150 kg 118 km 121 km cannot hold it 17 km
180 kg 109 km 112 km cannot hold it 13 km

Full pack, 25 °C, still air. 180 kg is Tesway's payload, read here as the rider plus cargo.

On the flat, weight costs less than you might expect: 180 kg aboard still covers 109 km at 25 km/h on one motor, against 148 km for 80 kg. Pushing through the air takes about 127 W at that speed whatever the bike carries, 57% of the 222 W at the wheel for an 80 kg rider, so the extra 100 kg raises the wheel power by about 32%, to 294 W. Uphill it is the other way: with 150 kg or more aboard, one motor cannot hold 16 km/h up 8%, and two can.

Cold

Air Cell energy against 25 °C One motor, 25 km/h, full pack (the sources' spread) Two motors, 25 km/h, full pack
25 °C 100% 148 km 146 km
10 °C 93% 125 km 126 km
0 °C 89% 115 km (104 to 121 km) 117 km
−10 °C (below Tesway's 0 °C) 82% 104 km (51 to 104 km) 106 km
−20 °C (below Tesway's 0 °C) 67% 82 km (41 to 101 km) 83 km

Cell energy from McMaster University's LG HG2 measurements at a moderate discharge rate; the spread in brackets is across the sources that include Samsung's own cell sheets. Air density and tire rolling resistance also change with temperature in the model.

The model changes rolling resistance by 0.9% for each °C away from 25, up in the cold and down in the heat, from Rothhämel's measured 5 to 25 °C range and BicycleRollingResistance.com's 20 to 40 °C tests. At 0 °C, the bottom of Tesway's window, the 25 km/h ride on one motor falls to about 115 km, and the cell sources disagree from 104 to 121 km. Below 0 °C the manual's window is closed: store and charge the pack indoors.

Wind and stops

Wind at 25 km/h One motor, full pack Two motors, full pack
20 km/h tailwind 321 km 281 km
10 km/h tailwind 234 km 217 km
still air 148 km 146 km
10 km/h headwind 91 km 96 km
20 km/h headwind 57 km 64 km

Each row holds that wind for the whole distance. Out and back, half into a 10 km/h wind and half with it, the pack lasts 131 km on one motor; at 20 km/h, 96 km on one and 104 km on two.

Each stop costs the energy to get the bike back to speed, since braking returns none of it: about 1.9 Wh for a gentle start to 25 km/h on one motor (half its torque, 13.7 s) and 3.8 Wh for a hard one on two (2.7 s). Two gentle stops a kilometre take the 25 km/h ride from 148 to 113 km on one motor; four hard ones on two motors take it to 66 km.

Tires and ground

The model uses the median of ten 26 × 4.0 fat tires measured on BicycleRollingResistance.com's drum. Swap in the fastest of the ten and the 25 km/h ride on one motor rises to 174 km; the slowest Kenda on that drum, the Juggernaut Pro, gives 135 km. Tesway names Kenda but not the tread. On fine gravel, at the 1.20 times asphalt's rolling resistance Meyer and colleagues measured on one bicycle tire, the same ride gives 135 km, and coarse gravel at 1.50 times gives 120 km: a sensitivity, since no one has published a fat-tire gravel measurement we could find.

An independent range test, set against the model

Path Seekers Unbound, a channel riding Ontario trails, published a range test of the X9 Ultra on 15 October 2026: a full charge, assist level 3 throughout, the rear motor only, mainly smooth pavement, 64 km ridden and, they estimated, another 5 or 6 km left. They did not give their speed, weight or the temperature, so the ride cannot confirm or refute a row above.

In the model, 64 to 70 km on one motor is what a steady 43.1 to 45.4 km/h on the throttle gives an 80 kg rider on level pavement in still 25 °C air; if they rode slower than that, something the model leaves out of a level, still, mild day, such as hills, wind, stops, cold or a heavier load, made up the difference.

The formula, worked through

One row by hand: 25 km/h on one motor, 80 kg rider, 25 °C, still air, level pavement.

  • Speed: 25 km/h is 6.94444 m/s. Mass: 133.0 kg (80 + 53).
  • Rolling: speed × mass × g × Crr = 6.94444 × 133.0 × 9.80665 × 0.01054 ≈ 95.466 W.
  • Air: ½ × air density × CdA × speed³ = ½ × 1.18391 × 0.640 × 6.94444³ ≈ 126.877 W.
  • At the wheel: 95.466 + 126.877 = 222.343 W. At 179.2 rpm on the 74 cm wheel, that is 11.85 N·m from the rear hub, drawing 11.28 A.
  • From the pack: the motor turns 0.752 of what it draws into wheel power here and the cells give up 0.970, so the pack supplies 222.343 ÷ 0.752 ÷ 0.970 ≈ 304.8 W.
  • Per kilometre: 304.8 W ÷ 25 km/h ≈ 12.19 Wh. Range: 1,800 Wh ÷ 12.19 Wh ≈ 148 km, or 118 km keeping 20%.

Crr is 0.01054, the median of the ten fat tires; CdA is 0.640 m², the median Tengattini and Bigazzi measured for riders sitting upright; the motor curve is Bafang's RM G0H0, set to Tesway's voltage, rating, torque and top speed, with the 80% Bafang prints as its minimum efficiency placed at the rated point; at light load it falls, to 0.752 in this row. Sources for each are in the source register.

Want your own route computed?

Send us your weight, your speed, your hills and your coldest ride month at sales@zeusebikes.ca, or call 1-866-938-7580, and we will run them through this model before you order.

See the X9 Ultra

Top speed: printed, modelled, measured

Tesway prints 69 km/h in its spec tab and 70 km/h in its highlights; the bike leaves the box limited to 25 km/h. In our model, with 80 kg aboard on level pavement in still air, two motors hold about 59.9 km/h at their rating and 62.8 km/h at the published peak, and one motor holds 49.9 km/h.

Independent tests measured 54 to almost 67 km/h on two motors.

Source Top speed Conditions Where
Tesway, spec tab 69 km/h not stated Tesway Canada
Tesway, highlights and specs table 70 km/h ("Up to 43 MPH" in the headline) not stated Tesway Canada
Our model, two motors at their rating 59.9 km/h 80 kg, level, still air, 25 °C the model
Our model, two motors at the 2,000 W peak each 62.8 km/h same the model
Our model, one motor at its rating 49.9 km/h same the model
Path Seekers Unbound, two motors, assist 5 57.6 km/h one way; about 54 km/h the other Ontario country road, "pretty windy", rider weight not stated their test, 26 Oct 2026
TechLine, two motors, by GPS "almost 67 kilometers per hour" rider weight not stated; the display read 5 to 6 km/h under the GPS their review, 3 Oct 2026
TechLine, one motor, by GPS 48.7 km/h same their review

Tesway read on 26 October 2026; both videos' captions read on 26 October 2026. A lighter rider, a tailwind or a downhill adds speed; a headwind and more weight take it away.

Our model's one-motor figure lands within 1.2 km/h of TechLine's GPS run, and its two-motor figure sits between the two measured runs. The 69 to 70 km/h Tesway prints is the speed at which the motors stop pushing in the model, reached only with help from gravity, a tailwind or your legs. Above 30 km/h every extra km/h costs range quickly (the speed table).

Climbing: what one motor and two can hold

Two motors are what the X9 Ultra is for on a hill. With 80 kg aboard on the throttle, two hold about 43.5 km/h up a 10% grade and 35.4 km/h up 15%, where one motor holds 21.6 and 3.5 km/h.

With the full 180 kg payload, two still hold 29.9 km/h up 10%, and one cannot hold even a walking pace.

Steady grade 80 kg, one motor 80 kg, two motors 120 kg, two motors 180 kg, two motors
6% 34.1 km/h 51.2 km/h 46.8 km/h 41.0 km/h
8% 28.5 km/h 47.2 km/h 42.0 km/h 35.4 km/h
10% 21.6 km/h 43.5 km/h 37.8 km/h 29.9 km/h
12% 14.3 km/h 39.9 km/h 34.0 km/h 22.2 km/h
15% 3.5 km/h 35.4 km/h 26.9 km/h 11.4 km/h

The fastest steady speed the motors hold on the throttle alone, at their rated power, 25 °C. Pedalling adds a little; loose ground takes some away, and grip on a steep, loose climb is not in the model.

At walking pace the model reaches the published 2,000 W peak before the 120 N·m: two motors hold an 80 kg rider up about a 31% grade (17°), and 23% with 120 kg aboard; one motor holds about 14%. Tesway writes that "In our challenging hill-climb test, the X9 Ultra achieved a 92% win rate, far exceeding its nearest competitor's 84%"; it publishes no method, grades or rival for that test, so we cannot set it against these figures. Our dual-motor e-bike guide compares its AWD picks and says when one motor is the better buy.

Takeaway: Switch to two motors at the foot of the climb. Loaded to 180 kg, two motors still hold 22.2 km/h up 12% in the model.

The 180 kg payload, the rack and one rider

Tesway rates the X9 Ultra for 180 kg, and the cautious reading counts the rider and everything you carry. Its FAQ says the dual-motor system "makes it suitable for heavy riders, cargo transport, and demanding terrain". Its manual says the bike "is designed for regular country road use for a single person", so it carries cargo and one rider.

The marketing on the same page says the fork and rear shocks give "a smooth, stable ride - solo or with a passenger". The manual is the document that sets the bike's limits, and Tesway's passenger seat lists the X5 and X7 models only, its seat cushion the X9 AWD but not the X9 Ultra. The manual also warns that "extreme off-road use, jumping, or carrying an excessive load will damage the E-bike", which matters on a bike Tesway calls an E-MTB "built for mountain trails and extreme climbs".

For gear, Zeus orders include Tesway's rear rack and full fenders while Tesway's offer runs (buying it from Zeus). Tesway's own listing for that rack says "The X9 AWD Rear Rack supports up to 110 lbs" (about 50 kg) and that it is "Designed to mount the X9 AWD taillight on the back of the rack"; two YouTube reviewers quote 35 kg (TechLine and BitzyBobzy). Until Tesway confirms the figure for the X9 Ultra's rack, load it to the lower 35 kg, and keep the rider and all cargo inside 180 kg.

Tesway Foldable Platform, $89.99

A foldable rear platform that Tesway calls "perfect for boxes, gear, and other large loads". Tesway's listing names the X9 Ultra among its fits: "Compatibility: TESWAY X5 PRO / X7 PRO / X5 AWD / X7 AWD / X9 AWD / X9 Ultra / C5 AWD" (Tesway, read 26 October 2026).

See the platform

Getting it home and stored: it weighs 53 kg and is 198 cm long, so plan a ground-floor spot, a ramp or two people for steps, and a vehicle rack rated above the bike's weight. Our guide to e-bikes for heavy riders compares payload ratings across its picks for heavier riders.

Will the X9 Ultra fit you?

Tesway lists riders from 160 to 196 cm, but the saddle tops out at 97 cm from the ground. At the saddle height cycling research uses as the standard (109% of your inseam, measured from the pedal), that suits 98 of 100 riders at 157 cm, 88 at 163 cm, 49 at 168 cm and 13 at 173 cm, and none from 178 cm up.

These counts come from RedTail's review of the same bike (its saddle table), which set each of the 6,068 bodies in the US Army's 2012 anthropometric survey on Tesway's drawing, saddle at 109% of inseam (Peveler and colleagues, 2005) and at the 106% low end of the accepted range (Ferrer-Roca and colleagues, 2012). Tesway's Canadian drawing and the US drawing RedTail measured agree on all eleven dimensions we compared. The survey measured US Army personnel, so read the counts as an approximation for Canadian riders.

Your height Typical inseam (90% of riders) Saddle height wanted, median rider Fit at 109% Fit at 106%
152 cm (5 ft 0 in) 69 to 76 cm 88 cm 100 of 100 99 of 100
157 cm (5 ft 2 in) 71 to 79 cm 91 cm 98 of 100 100 of 100
163 cm (5 ft 4 in) 74 to 82 cm 94 cm 88 of 100 98 of 100
168 cm (5 ft 6 in) 77 to 85 cm 97 cm 49 of 100 80 of 100
173 cm (5 ft 8 in) 79 to 87 cm 99 cm 13 of 100 44 of 100
178 cm (5 ft 10 in) 82 to 90 cm 102 cm 0 of 100 10 of 100
183 cm (6 ft 0 in) 84 to 93 cm 105 cm 0 of 100 1 of 100
188 cm (6 ft 2 in) 87 to 95 cm 108 cm 0 of 100 0 of 100

From RedTail's run of the 6,068 measured bodies on the X9 Ultra's drawing, men and women together; saddle height measured from the ground, using the crank height and length RedTail read from Tesway's photograph. Fully raised, the saddle suits inseams up to 80 cm at 109% and 83 cm at 106%.

Measure your inseam barefoot against a wall with a hardcover book drawn up snugly, floor to spine. If it is over 83 cm, the post runs out before even the low end of the range and your knee stays bent at the bottom of the stroke: call us before you order. At a stop, the 71 cm standing height is the other check: RedTail's step-over table finds 95 of 100 riders from 160 cm up clearing it by at least 1.8 cm, and about a third at 152 cm not clearing it.

Takeaway: The X9 Ultra fits most riders up to about 163 cm, about half at 168 cm, 13 in 100 at 173 cm and none from 178 cm up, whatever the 160 to 196 cm window says. Taller riders should look at the X7 AWD or X5 AWD, whose saddles reach 102 cm.

Brakes, suspension, tires, gears and lights

Both wheels stop on four-piston hydraulic brakes. Tesway gives the rotors as 180 × 2.3 mm in its text and 203 × 2.3 mm in its spec tab, and RedTail found the front rotor in Tesway's own close-up stamped "180" (its brakes section). Send us a photo of yours before you order a replacement rotor.

Up front is what Tesway calls a "120mm dual-crown motorcycle fork"; at the back, its spec tab says "Rear Spring Suspension" while its text speaks of "dual rear shocks". Tesway also sells a 165 mm air shock whose listing reads "Compatibility: TESWAY X9 AWD / X9 Ultra", and RedTail's suspension section reads it as the X9 Ultra's rear unit: which shock your bike carries is a question to ask before ordering a spare.

Close-up of an orange X9 frame at the rear wheel: the hub motor, the seven-speed cassette and the derailleur
Tesway's close-up on our listing: the rear hub motor, the seven-speed cassette and the derailleur on an orange X9 frame.

The tires are 26 × 4.0 Kendas, about 74 cm tall, which Tesway says "offer durability and enhanced safety"; our fat-tire e-bike guide includes a tire-pressure guide by terrain. Gearing is Shimano 7-speed with a 52-tooth chainring under a cover. The display is a colour LCD with NFC unlocking ("tap-to-ride NFC unlocking and a USB charging port"), two NFC cards in the box and a passcode in the manual; it turns itself off after 10 minutes idle.

Lights: "The 900-lumen headlight and integrated horn keep you visible and safe during night rides." The spec tab lists front and rear lights, the box list names only the headlight, and Tesway's rack listing says the rack carries the taillight. No Tesway page, record or manual we read mentions turn signals. Tesway's FAQ calls the bike "IPX6 water-resistant, making them safe to ride in light rain", and the manual says not to use high-pressure water to clean it.

Close-up of the X9 headlight: a round caged lamp on a bracket at the fork crown
Tesway's close-up on our listing: the caged round headlight on its fork bracket, which Tesway rates at 900 lumens.

Tesway names no motor maker for the X9 Ultra on any page, record or manual section we read, and does not say whether the pedal sensor reads cadence or torque; its troubleshooting table calls the part a "speed sensor".

The X9 Ultra against the X7 AWD and X5 AWD

Two of Tesway's other dual-motor bikes, the X7 AWD and X5 AWD, carry 73% more battery for the same or less money at Zeus: 3,120 Wh on the X7 AWD ($2,899) and X5 AWD ($2,999) against the X9 Ultra's 1,800 Wh ($2,999).

The X9 Ultra answers with 60 V, 1,200 W and 120 N·m per motor against 1,000 W and 100 N·m, 26-inch wheels against 20-inch, and more climbing speed.

X9 Ultra X7 AWD and X5 AWD
Battery 60 V 30 Ah, 1,800 Wh 52 V 60 Ah, 3,120 Wh
Motors 2 × 1,200 W rated, 2 × 2,000 W peak, 2 × 120 N·m 2 × 1,000 W rated (52 V 2,000 W), 3,600 W peak, 200 N·m
Wheels 26 × 4.0, 74 cm 20 × 4.0, 59 cm
Weight and payload 53 kg; 180 kg 54 kg; 181 kg (spec tab), 180 kg (drawing)
Saddle from the ground 81 to 97 cm 85 to 102 cm
25 km/h, flat, two motors 146 km (117 km) 257 km (206 km)
40 km/h, flat, two motors 83 km (66 km) 146 km (117 km)
Top speed, flat, 80 kg (model) 59.9 km/h 53.9 km/h
Up 10%, 80 kg, two motors 43.5 km/h 38.3 km/h
Up 12%, 180 kg, two motors 22.2 km/h 19.5 km/h
Frame step-over, full suspension X7 AWD step-over, X5 AWD step-through (58 cm standing height); front and rear suspension on both
Price at Zeus $2,999 X7 AWD $2,899; X5 AWD $2,999

Tesway Canada's figures for each bike (X9 Ultra, X7 AWD and X5 AWD pages and size drawings), read 26 October 2026, run through the same model on the same assumptions (80 kg rider, 25 °C, still air, level pavement unless stated; full pack, 20% kept in brackets). The X7 AWD and X5 AWD share every model input; their frames differ.

So the choice is range or punch. On the flat at 25 km/h the AWDs go about 76% further; up a 10% grade the X9 Ultra is 43.5 km/h to their 38.3 km/h, and its wheels stand 74 cm tall to their 59 cm. The AWDs also fit taller riders. At 173 cm, RedTail's fit model puts 78 of every 100 riders at the standard saddle height on the X7 AWD (its saddle table) and 91 on the X5 AWD (its saddle table), against 13 on the X9 Ultra.

Tesway X7 AWD, $2,899

Two 1,000 W hubs and a 3,120 Wh pack on 20 × 4.0 tires, step-over frame: about 257 km at 25 km/h on the flat on two motors in our model, and a saddle up to 102 cm.

See the X7 AWD

Tesway X5 AWD, $2,999

The same motors, battery and range as the X7 AWD on a step-through frame with a 58 cm standing height, for riders who would rather not swing a leg over.

See the X5 AWD

What the law calls it, province by province

No province or territory lets the X9 Ultra ride public roads, bike lanes or paths as an e-bike. Nine of Canada's thirteen provinces and territories define an e-bike, and all nine stop at 500 W; New Brunswick's registry guidance uses the same 500 W; Newfoundland and Labrador, the Northwest Territories and Nunavut have no e-bike definition.

Tesway Canada rates each of this bike's two motors at 1,200 W.

Tesway and Zeus both list it as an e-bike, which is a shop category; where you may ride it is set by law. Canada has had no federal e-bike definition since the federal power-assisted-bicycle definition was repealed effective February 4, 2021 (SOR/2020-22; the regulation), so the rules are provincial and territorial.

Jurisdiction The words that decide it The X9 Ultra against them Zeus guide
Ontario Highway Traffic Act s. 1(1) defines a power-assisted bicycle as a "power-assisted bicycle as defined in subsection 2 (1) of the Motor Vehicle Safety Regulations", the repealed federal text (the Act); O. Reg. 369/09 s. 3(2): the motor "must cease to propel the bicycle forward if pedalling stops, the accelerator is released or the brakes are applied" (the regulation). Outside: 2,400 W against the 500 W of the referenced definition. Ontario adds that it is "illegal to modify your e-bike's electric motor to make it more powerful or to increase the assisted speed of the bike" (ontario.ca). Ontario
Québec SAAQ: a power-assisted bicycle must have a "maximum power rating of no more than 500 watts" (SAAQ); its FAQ: "A bicycle equipped with a 1,000-watt motor is still considered a bicycle, but is not authorized for use on a public road, including roadways and bike paths" (SAAQ FAQ). Outside: each of its motors is rated above the 1,000 W SAAQ names, so not authorized on a public road, including roadways and bike paths. Québec
British Columbia B.C. Reg. 64/2024 s. 3(1): "one or more attached electric motors that have a continuous power output rating that, in total, does not exceed 500 W" (the regulation). Outside: 2,400 W in total. BC
Alberta AR 304/2002 s. 1(1)(o): a "power bicycle" is a vehicle that is a "power-assisted bicycle under the Motor Vehicle Safety Regulations (Canada)", the repealed federal text (the regulation). Outside: 2,400 W against the 500 W of the referenced definition. Alberta
Saskatchewan Registration Exemption and Reciprocity Regulations, 2014, s. 2(1)(f): motors that have, "singly or in combination, the following characteristics: (A) a total continuous power output rating of 500 watts or less when measured at the shaft of each motor" (the regulations); SGI: e-bikes "larger than 500 watts or without pedals are considered motorcycles" (SGI). Outside: 1,200 W at each shaft. Saskatchewan and Manitoba
Manitoba Highway Traffic Act s. 1(1): a motor with a "continuous power output rating, measured at its shaft, of 500 W or less" (the Act). Outside: 1,200 W a motor. Saskatchewan and Manitoba
Nova Scotia N.S. Reg. 221/2026 s. 3 (Traffic Safety Act regulations, in force 19 October 2026): motors with "a total continuous nominal power output rating, measured at the shaft of each motor, of 500 W or less" and no assistance once the bicycle "reaches a speed of 32 km/h on level ground" (the regulation). Outside on the motors and on the published 69 to 70 km/h. Atlantic Canada
New Brunswick No e-bike definition in the Motor Vehicle Act; Service New Brunswick treats a vehicle with a motor "equal to or less than 500W" that cannot assist past 32 km/h as a bicycle (GNB). Outside: GNB adds that a vehicle over 500 W able to power past 32 km/h with no CMVSS compliance label cannot be registered unless an engineer certifies it fit for the province's highways. Atlantic Canada
Prince Edward Island Power-Assisted Bicycles Regulations s. 8(2): "continuous power output ratings that in total do not exceed 500 watts", and the bicycle must "not be capable of propelling the power-assisted bicycle at a speed greater than 32 kilometres per hour on level ground" (the regulations). Outside on both counts. Atlantic Canada
Newfoundland and Labrador Highway Traffic Act s. 2(e): a bicycle "means a device propelled by human power upon which a person may ride, having 2 wheels in tandem"; s. 2(oo): a vehicle "propelled, driven or controlled otherwise than by muscular power" is a motor vehicle; s. 2(mm): a moped has "a power source that produces a maximum 1.5 k.w", a speed without pedalling "not exceeding 50 kilometres an hour" and "a maximum weight of 55 kilograms" (the Act). Outside on either reading. As written, a motor vehicle under s. 2(oo), and not a moped: its 2.4 kW and 69 to 70 km/h are past the moped's 1.5 kW and 50 km/h. Read the other way, the province "currently follows federal standards" (CBC News, 6 August 2026), meaning the definition repealed in 2021, whose 500 W it exceeds. Ask Service NL before riding near a road. Atlantic Canada
Yukon Motor Vehicles Act s. 1, electric power-assisted cycle: a continuous power output rating "of 500 W or less in total for the motor or combination of motors" (the Act). Outside: 2,400 W. Atlas
Northwest Territories The Motor Vehicles Act defines a bicycle as "a cycle having any number of wheels that is propelled by human power" (the Act); the All-terrain Vehicles Act counts a "pedal bicycle with motor attachment" among all-terrain vehicles (the Act). Treated as an all-terrain vehicle by that Act's list. Atlas
Nunavut The All-terrain Vehicles Act counts "a pedal bicycle with motor attachment" (the Act); the Traffic Safety Act defines a bicycle as propelled by "human muscular power", and a moped whose motor cannot let it "attain a speed greater than 70 kilometres per hour" (the Act). Two readings: an all-terrain vehicle under the ATV Act, or a moped, a motor vehicle, under the Traffic Safety Act's wording, which turns on that 70 km/h line: Tesway prints 69 and 70 km/h, and the tests we read measured 54 to almost 67 km/h. Ask the territory before riding near a road. Atlas

Each row's words are quoted from the statute, regulation or regulator page linked in it, read or verified on 26 October 2026: 30 of 30 quoted passages found. The Northwest Territories' own legislation pages returned errors that day, so its two Acts are linked at the Internet Archive's captures, byte-identical to the copies read on the territory's site on 16 October 2026. Nunavut marks both of its consolidations "not up to date": every amending act they list was read on 26 October 2026, and none changes the definitions quoted here. This table is a reading of the definitions, not legal advice.

Where no e-bike definition applies, a 2,400 W machine falls to each jurisdiction's motor-vehicle or off-road-vehicle rules. Ride it off public roads, where the landowner, trail authority or track sets access, and check the off-road vehicle rules where you ride. Our guide to e-bike laws in Canada carries the age, helmet and passenger rules the table leaves out. For hunting use, see our hunting e-bike guide.

The short version

At 1,200 W a motor, the X9 Ultra is outside every provincial and territorial e-bike rule. Ride it on private land with the landowner's permission, or on trails and tracks whose managers allow a machine of its power, and check your province's off-road vehicle rules first.

The 25 km/h default and the unlock

Tesway Canada prints a "Default Speed-25 KM/H" for the X9 Ultra, and the Ontario testers found it arrives with "a regulator on it at 24 km an hour" (Path Seekers Unbound). Tesway's manual calls the setting that also lets you use the throttle "full power mode (should check against local laws to ensure full power mode is permitted)".

We do not publish settings changes, and we found no Canadian rule that a speed setting satisfies.

Read one way, the motors' rating decides: every provincial definition and guidance we read sets its limit on the motor's power rating or output, and Tesway rates these at 1,200 W each, so a speed setting does not change what the motors are. Read the other way, a rider could argue that a limited speed is what counts. We found no statute, regulator page or court decision in Canada that accepts a speed or software limit in place of a motor's rating; until one does, plan on the rating.

What we will not publish

Settings that raise this bike's speed or power past its factory setting. Ontario says it is illegal to modify an e-bike's motor to make it more powerful or faster, and the motors' rating already decides how every province treats this bike.

Where Tesway prints a figure two ways

Tesway's own pages disagree on nine figures for the X9 Ultra, and three changed between our reads of 17 October 2026 and 26 October 2026. This review prints both sides of each, and the last column names the figure it plans on.

Figure One reading The other What this review uses
Range headline 113 to 161 km; "up to 161 km" (text and highlights, 26 Oct) "up to 193 km" (FAQ, 26 Oct; text and specs table on 17 Oct); a feature heading still reads "Up to 120 Miles" (26 Oct) each as a steady speed (the table)
Which mode goes further "113–161 km on a single motor or 80–113 km on dual motors" (text) single 80 to 113 km, dual 113 to 161 km (spec tab); the FAQ says dual mode for maximum range one motor below about 30 km/h, two above it and on hills
Weight 53 kg (spec tab, specs table and drawing, 26 Oct; US page 117 lb) 48 kg (Canadian spec tab, 17 Oct); 63 kg in Tesway's US detail block on 26 September, in RedTail's read (its weight section) 53 kg; at 48 kg the 25 km/h ride gains about 2 km, at 63 kg it loses 5
Top speed 69 km/h (spec tab; 70 km/h there on 17 Oct) 70 km/h (highlights, specs table); "Up to 43 MPH" the model's 59.9 km/h; tests 54 to almost 67 km/h
Rotor size 180 × 2.3 mm (text) 203 × 2.3 mm (spec tab) RedTail found "180" stamped on the rotor in Tesway's photograph
Charge time "About 7 hours" (specs table) 6 hours from completely discharged (manual) at least 10 hours by arithmetic
Warranty length two years from receipt for Canadian purchases (warranty page) "Covers product defects or malfunctions for one year after purchase date" (the product page's warranty tile); the manual's one-year terms cover US purchases Tesway's 2-year warranty, backed in full, Zeus handles the claim
Passengers "solo or with a passenger" (product page) "designed for regular country road use for a single person" (manual) one rider
Rear suspension "Rear Spring Suspension" (spec tab) "dual rear shocks" (text); Tesway's 165 mm air shock lists the X9 Ultra ask which unit before ordering a spare

Tesway Canada's X9 Ultra page and manual, read 17 October 2026 and 26 October 2026; Tesway's US page read 26 October 2026.

Recall record

We found no recall naming Tesway, the X9 or the X9 Ultra in Health Canada's recalls database or in the US CPSC recall records, searched on 26 October 2026.

Health Canada's search for "electric bicycle" returned 1,490 records and the CPSC search for Rad Power returned its recall that day, so both searches were working when they came back empty for Tesway.

Is it UL certified?

Tesway says so: "The entire e-bike system is UL 2849 certified by TÜV, while the battery pack is UL 2271 certified". It prints no certificate number on the pages we read.

The two standards differ: UL 2271 covers batteries for light electric vehicles, while UL 2849 covers the e-bike's electrical system as a whole, drive and battery management included (RedTail's UL section quotes both scopes). If a landlord, condo board or insurer wants paperwork, email us and we will ask Tesway for the certificates in writing.

Warranty, Zeus Care and who handles a claim

The X9 Ultra from Zeus carries Tesway's 2-year warranty, backed by Tesway in full, and Zeus handles the claim. Tesway's Canadian warranty page covers manufacturing defects "for two (2) year after receipt of the ebike by the customer" and excludes, among other things, commercial use, water damage, extreme riding and stunt riding, and wear parts "including without limitation tires, tubes, brake pads, cables and housing, grips, chain and spokes".

On 26 October 2026 Tesway's X9 Ultra page also carried a banner offering a "FREE 2-Year Extended Warranty" on the motor, battery and frame, and neither the banner nor the warranty page says how it combines with those two years: ask us, and we will get Tesway's answer in writing before you order.

Every Zeus e-bike also comes with its first month of Zeus Care. Zeus Care is a service plan and adds no warranty coverage. In practice: when something goes wrong, call 1-866-938-7580 or write to support@zeusebikes.ca, and we work through the manual's error codes with you before filing the claim with Tesway. Our warranty page sets out the terms.

Buying it from Zeus

$2,999 in Orange, Blue, Black or Camo, with free shipping from Canada: orders are processed in 1 to 3 business days, then delivery takes 2 to 7 business days by our shipping policy; our listing gives Tesway's 3 to 7 for in-stock bikes (5 to 7 in Tesway's FAQ).

Cancellation is free within 24 hours, with a 3% fee after; an unused, unopened bike can be returned within 15 days of delivery, with a 15% restocking fee and return shipping paid by you (refund policy). Financing options appear at checkout, and our financing guide walks through them.

On 26 October 2026 our listing names these gifts with the bike while Tesway's offer runs: the rear rack with full fenders, a 5-piece accessory kit (phone mount, rear bag, bike lock, brake pads and a rearview mirror) and a free 2-year warranty on the motor, battery and frame (the warranty section says what Tesway leaves unclear about it). Zeus's own Early Black Friday gift comes with the bike too: 13 free accessories, shipped separately by 17 December 2026; the offer ends on 17 November 2026.

Tesway X9 Ultra, $2,999

Free shipping from Canada, Tesway's 2-year warranty backed in full, and Zeus handles the claim.

See the X9 Ultra

The honest ledger

Green flags

  • Two motors with a key between them: one for flat ground, two for hills, loads and speed.
  • Climbing: 43.5 km/h up 10% with 80 kg aboard on two motors, and 29.9 km/h with 180 kg, in the model.
  • Full suspension, 26 × 4.0 tires and four-piston hydraulic brakes for rough ground.
  • A 180 kg payload and Tesway's stated suitability for heavy riders and cargo.
  • No recall found at Health Canada or the US CPSC on 26 October 2026; UL 2849 and UL 2271 certification claimed by Tesway.
  • Tesway's 2-year warranty backed in full, Zeus handles the claim, and it ships from Canada.

Red flags

  • Outside every provincial and territorial e-bike rule: no public roads, bike lanes or paths.
  • The saddle tops out at 97 cm: 13 in 100 riders reach the standard saddle height at 173 cm, and none from 178 cm.
  • 1,800 Wh: about 88 km at 32 km/h with 20% kept, and about 54 km on a mixed day, far below Tesway's headline.
  • A charge from empty takes at least 10 hours on the 3 A charger; Tesway prints 6 to 7.
  • One rider only, by the manual, which also warns that extreme off-road use and jumping will damage the bike.
  • Tesway prints nine figures two ways, changed three within nine days, names no motor maker and lists no turn signals.
  • 53 kg and 198 cm long: heavy to lift, store and carry.

Who should buy it

Buy the X9 Ultra if you ride private land or permitted trails, climb steep or loose ground, or carry a heavy load, you are up to about 168 cm tall, and your day is under about 54 km at mixed speeds or about 118 km at a steady 25 km/h.

Buy the X7 AWD or X5 AWD instead if range matters more than climbing speed, or you are taller: they carry 3,120 Wh and their saddles reach 102 cm.

Buy neither if you need to ride public roads or bike paths: look at a 500 W e-bike, and check it against your province in our guide to e-bike laws in Canada.

Before you buy: the checklist

  1. Where will you ride? Private land with permission, or trails and tracks whose rules allow a 2,400 W machine (law).
  2. Your inseam: up to 80 cm reaches the standard saddle height, up to 83 cm the low end; call us above that (fit).
  3. Your load: you plus everything you carry inside 180 kg; rack loads to 35 kg until Tesway confirms its figure (payload).
  4. Your day: distance, speed, hills and the coldest month you ride against the four real days.
  5. Storage and charging: a dry, ground-floor spot for 53 kg and 198 cm, and a 10-hour charge from empty between 0 and 40 °C (battery).
  6. One rider: no passenger, by the manual.
  7. Questions: 1-866-938-7580, sales@zeusebikes.ca.

Limitations of this review

  • A computed review: we did not ride a pack flat. Three independent tests are set against the model; none published the rider's weight or the temperature.
  • Tesway does not say how its controller shares torque between the motors; the model splits it evenly. In single mode the front hub turns freely in the model; if it drags, one motor costs a little more.
  • Tesway names no motor maker and publishes no motor curve: each hub is modelled on Bafang's RM G0H0 shape at Tesway's voltage, rating, torque and top speed, with the 80% Bafang prints as its minimum efficiency placed at the rated point. A more efficient motor would go further.
  • Cell energy in the cold comes from measurements of a representative 18650 cell, bracketed by Samsung's own sheets; Tesway names Samsung without naming the cell.
  • Gravel uses one bicycle tire's measured ratio; we found no fat-tire gravel measurement. Wind, stops and grades are steady in each row; real rides mix them.
  • Motor and battery heating, wheel inertia in a start, and tire grip on steep climbs are not modelled.
  • The fit counts place US Army bodies on Tesway's drawing: geometry, with no test ride behind them. The law table reads definitions; it is not legal advice.

The source register

  1. Tesway Canada, TESWAY X9 Ultra page (every tab, product record, size drawing, FAQ): read 26 October 2026; earlier copy read 17 October 2026
  2. Tesway US, TESWAY X9 Ultra page and product record: read 26 October 2026
  3. Tesway, X9 Ultra owner's manual (PDF dated 7 April 2026, the copy linked from the Canadian page): read 26 October 2026
  4. Tesway Canada, Warranty Policy and FAQs: read 26 October 2026
  5. Tesway Canada, TESWAY Foldable Platform: read 26 October 2026
  6. Tesway Canada, TESWAY X7 AWD page and X5 AWD page (specs and size drawings): read 26 October 2026
  7. RedTail eBikes, Tesway X9 Ultra review (our US sister store: range model, fit model, rotor and shock findings, the US weight read of 26 September 2026): read 26 October 2026
  8. RedTail eBikes, Tesway X7 AWD review and X5 AWD review (their fit models, checked against Tesway Canada's drawings): read 26 October 2026
  9. Path Seekers Unbound, X9 Ultra range test (15 October 2026) and top-speed test (26 October 2026); TechLine, X9 Ultra review (3 October 2026); BitzyBobzy, X9 Ultra video (7 September 2026): captions read 26 October 2026
  10. Martin et al. (1998), road-cycling power model; Bafang OEM workbook (2021), RM G0H0; Arango, Lopez and Ceren (2021), battery efficiency; McMaster LG HG2 cell data; Samsung 25R, 30Q and 35E cell sheets; Casado et al. (2025); U.S. Standard Atmosphere (1976)
  11. BicycleRollingResistance.com, fat-bike tests, Kenda Juggernaut Pro, temperature test; Rothhämel (2023); Tengattini and Bigazzi (2018); Meyer, Kloss and Senner (2016) (abstract record)
  12. US Army ANSUR II survey; Peveler et al. (2005); Ferrer-Roca et al. (2012)
  13. Statutes, regulations and regulator pages in the law table: read or verified 26 October 2026
  14. Health Canada recalls search and US CPSC recall records: searched 26 October 2026
  15. Zeus eBikes, Tesway X9 Ultra listing, shipping policy, refund policy, warranty page: read 26 October 2026

Frequently asked questions

Is the Tesway X9 Ultra legal to ride on the road in Canada?

Not as an e-bike. Canada has had no federal e-bike definition since the federal power-assisted-bicycle definition was repealed effective February 4, 2021, so the rules are provincial and territorial. Nine provinces and territories define an e-bike and all nine stop at 500 W; New Brunswick's guidance uses the same 500 W; Newfoundland and Labrador, the Northwest Territories and Nunavut have no e-bike definition. Tesway Canada rates each of the X9 Ultra's two motors at 1,200 W, so no province or territory lets it ride public roads, bike lanes or paths as an e-bike. Ride it off public roads where the landowner or trail authority allows it, and check your province's off-road vehicle rules.

How far does the Tesway X9 Ultra go on one charge?

On its 1,800 Wh pack, about 148 km at a steady 25 km/h on one motor for an 80 kg rider on level pavement, or 118 km if you recharge at 20%, as Tesway's manual recommends. On a mixed real day (30 km/h, 100 kg aboard, 10 °C, two stops a kilometre, a 10 km/h wind out and back, half on fine gravel) plan on about 54 km on one motor; on a hard day at 40 km/h with 140 kg at 0 °C, about 20 km on two motors. Tesway's 161 km is a steady 23.0 km/h on one motor and the throttle, and its FAQ's 193 km about 18.4 km/h.

Does the X9 Ultra go further on one motor or two?

It depends on the ride. In our model two motors use about 5% more energy than one at 15 km/h on the flat and about the same at 25 km/h, and less from about 30 km/h up and on every climb: 21% less at 25 km/h up an 8% grade. Tesway prints the answer both ways on the same page. Ride the flat on one motor and press the Info key before a hill, a heavy load or a fast stretch.

How fast does the Tesway X9 Ultra go?

Tesway prints 69 km/h in its spec tab and 70 km/h in its highlights, and the bike leaves the box limited to 25 km/h. In our model, with 80 kg aboard on level pavement in still air, two motors hold about 59.9 km/h at their rating and one holds 49.9 km/h. Independent tests on two motors measured 57.6 km/h one way and about 54 km/h the other on a windy Ontario road, and almost 67 km/h by GPS on another unit; that second test measured 48.7 km/h on one motor.

Can the X9 Ultra be limited to 25 km/h?

It leaves the box that way: Tesway Canada prints a 25 km/h default speed, and Ontario testers found the limiter set at 24 km/h. A speed setting does not make it legal on public roads, though: every provincial and territorial e-bike rule we read also caps motor power at 500 W, and each of its motors is rated at 1,200 W. We do not publish settings that raise its speed or power.

Can I ride the X9 Ultra on the throttle alone?

Yes. It has a half-twist throttle, cruise control in pure electric mode, five pedal-assist levels and walk assist at 6 km/h. Tesway's manual calls the setting that also lets you use the throttle "full power mode (should check against local laws to ensure full power mode is permitted)". The range tables in this review are throttle-only unless they say otherwise; pedalling stretches every figure.

How much does the Tesway X9 Ultra weigh?

53 kg by Tesway Canada's spec tab, specs table and size drawing on 26 October 2026; Tesway does not say whether that includes the battery or give the battery's own weight. On 17 October 2026 its spec tab printed 48 kg, and RedTail read 63 kg in Tesway's US detail block on 26 September 2026. It is 198 cm long; plan on two people to lift it onto a rack or up stairs.

What battery does the X9 Ultra use, and how long does it take to charge?

A 60 V 30 Ah pack, about 1,800 Wh, which Tesway calls a "60V 30Ah Samsung battery", charged by a 67.2 V 3 A charger. By arithmetic a 3 A charger needs at least 10 hours to refill 30 Ah from empty and 8 hours from 20%; Tesway prints about 7 hours and its manual 6 hours. The manual rates the pack for 600 charge cycles in normal use and gives it a 0 to 40 °C window for use, storage and charging.

Can the Tesway X9 Ultra climb steep hills?

Yes, on two motors. With 80 kg aboard on the throttle they hold about 43.5 km/h up a 10% grade and 35.4 km/h up 15%; with the full 180 kg, 29.9 km/h up 10%. One motor manages 21.6 km/h up 10% with 80 kg and cannot hold even a walking pace with 180 kg. Each 100 m of climbing on two motors costs about 56 to 70 Wh of the 1,800 Wh pack on grades of 4 to 10%, on top of what the same distance takes on the flat.

What height rider does the Tesway X9 Ultra fit?

Tesway lists 160 to 196 cm, but the saddle tops out at 97 cm from the ground. At the standard saddle height (109% of inseam) it suits 98 of 100 riders at 157 cm, 88 at 163 cm, 49 at 168 cm, 13 at 173 cm and none from 178 cm up, by the fit model our US sister store, RedTail eBikes, ran on 6,068 measured bodies; at the lower 106% setting, 44 of 100 at 173 cm. If your inseam is over 83 cm, call us first.

Can the X9 Ultra carry a passenger, and how much weight?

Tesway's manual says the bike "is designed for regular country road use for a single person", and Tesway's passenger seat does not list the X9 Ultra, so carry cargo and ride alone. Read its 180 kg payload as the rider plus everything carried. Tesway's listing for the rear rack says it "supports up to 110 lbs" but names the X9 AWD; two reviewers quote 35 kg, so load the rack to 35 kg until Tesway confirms the X9 Ultra's figure.

Does the X9 Ultra have turn signals and a taillight?

No Tesway page, product record or manual section we read mentions turn signals. Tesway's spec tab lists front and rear lights, its box list names only the 900-lumen headlight, and its rack listing says the rack is designed to mount the taillight. Ask us to confirm the taillight with your order, and add signals yourself if you ride where you need them.

Who makes the Tesway X9 Ultra's motors?

Tesway does not say. Its pages and manual name no motor maker and do not say whether the two hubs are geared or direct-drive; they give each motor's ratings, 1,200 W rated, 2,000 W peak and 120 N·m, and place one in each wheel. Our model uses a published hub-motor curve set to those figures.

Can I ride the X9 Ultra in the rain or in winter?

In light rain, by Tesway's FAQ: "X9 Ultra ebikes are IPX6 water-resistant, making them safe to ride in light rain", but not in heavy downpours, and the manual says not to use high-pressure water to clean it. In winter, its battery window starts at 0 °C, where the 25 km/h ride on one motor falls from 148 to about 115 km in our model. Keep and charge the pack indoors, and ask us before fitting studded tires.

Tesway X9 Ultra vs X9 AWD: what changed?

The voltage, by Tesway's account. Its FAQ says "The latest X9 Ultra has been upgraded to a 60V high-voltage system"; the earlier X9 AWD was a 48 V build (RedTail notes it), and Tesway's X9 AWD web address now opens the X9 Ultra page. Tesway sells the X9 spare pack in 48V 30AH and 60V 30AH versions, so match the label on your battery before buying a part. Zeus sells the 60 V X9 Ultra.

Tesway X9 Ultra vs X7 AWD or X5 AWD: which should I buy?

For range, the X7 AWD ($2,899) or X5 AWD ($2,999): their 3,120 Wh packs go about 257 km at 25 km/h on two motors in our model, against the X9 Ultra's 146 km. For climbing, the X9 Ultra ($2,999): 43.5 km/h up a 10% grade against their 38.3 km/h, on 26-inch wheels against their 20-inch. Taller riders fit the AWDs better: at 173 cm, RedTail's fit model puts 78 of 100 riders at the standard saddle height on the X7 AWD and 91 on the X5 AWD, against 13 on the X9 Ultra.

What accessories fit the Tesway X9 Ultra?

The rear rack with full fenders comes with Zeus orders while Tesway's offer runs, and Tesway's foldable platform lists the X9 Ultra among its fits. Tesway lists its passenger seat, front basket and child fences for other models only. Check Tesway's compatibility line, or ask us, before ordering any part.

How hard is the Tesway X9 Ultra to assemble?

Tesway's manual says "Assembly is quite easy as most of the parts are already assembled": you fit the front wheel and connect its motor wire, the handlebar, the headlight, the battery, the saddle and the pedals, then pump the tires. Tesway's own assembly video above runs 5 min 24 s. The rack, fenders and accessory kit from Tesway's offer can arrive in a separate package. Assembly walkthroughs by phone, email or video come with the first month of Zeus Care that every Zeus e-bike includes.

What brake pads does the Tesway X9 Ultra use?

Pads for its four-piston hydraulic calipers. Tesway sells pads by model, and its brake-pad listing names the X9 Ultra; the 5-piece kit on our listing includes a set of pads. Send us a photo of your caliper before ordering spares, and replace pads before the pad material wears thinner than its backing plate, as the manual's pre-ride check says.

Is Tesway a good brand, and what is its service like?

On the record we checked: Tesway publishes full specifications, a size drawing and a manual for the X9 Ultra, though nine of its figures disagree between its own pages; we found no Health Canada or US CPSC recall naming Tesway on 26 October 2026; and its Canadian warranty runs two years from receipt. Owners' public posts about the X9 that we read (Reddit) range from support replies within hours to doubts about its range claims and parts. Buy from Zeus and you call us: we file the claim and follow it.

What warranty does the Tesway X9 Ultra come with in Canada?

Tesway's 2-year limited warranty from the day you receive it, backed by Tesway in full, with Zeus handling the claim. It covers manufacturing defects and excludes wear parts such as tires, brake pads and chains, and damage from commercial use, water, extreme riding or stunts. While Tesway's offer runs, our listing also names a free 2-year warranty on the motor, battery and frame, which Tesway's banner calls a "FREE 2-Year Extended Warranty" without saying how it combines with the standard two years: ask us, and we will get Tesway's answer in writing. Zeus Care is a service plan that adds no coverage: its first month comes with every Zeus e-bike.

How much does the Tesway X9 Ultra cost in Canada, and how does ordering work?

$2,999 at Zeus with free shipping from Canada. Orders are processed in 1 to 3 business days; delivery then takes 2 to 7 business days by our shipping policy, or 3 to 7 by Tesway's figure for in-stock bikes. Cancellation is free within 24 hours (3% after that), and an unused, unopened bike can be returned within 15 days of delivery with a 15% restocking fee, return shipping paid by you. Financing options appear at checkout.

Is the Tesway X9 Ultra worth it?

For the right rider and land, yes: two motors, 1,800 Wh, full suspension and a 180 kg payload for $2,999, with climbing speed the X7 AWD and X5 AWD do not reach in our model. It is the wrong bike if you need public roads, ride more than about 54 km on a mixed day, are taller than about 168 cm, or want range above all. For the road, look at a 500 W e-bike; for range or a taller rider, the X7 AWD and X5 AWD fit better.


The bottom line

The X9 Ultra earns its place on climbing and rough ground: two motors that hold 43.5 km/h up a 10% grade with 80 kg aboard in our model, full suspension and 26-inch fat tires, for $2,999.

Plan its range from about 118 km at a steady 25 km/h on one motor and about 54 km on a mixed real day, not from Tesway's headline. It asks you to accept three things: it is outside every provincial and territorial e-bike rule, its saddle suits riders up to about 168 cm best, and it weighs 53 kg.

If those fit your land, your body and your plans, order it with room to change your mind: an unused, unopened bike can be returned within 15 days of delivery (15% restocking fee), a person answers at 1-866-938-7580, and our financing guide shows what monthly plans cost. Send your route to sales@zeusebikes.ca and we will run it through this model first.

Tesway X9 Ultra, $2,999

Free shipping from Canada, Tesway's 2-year warranty backed in full, and Zeus handles the claim.

See the X9 Ultra

Written by Milad Ghobadibeygvand, BScN (Western University, 2014), co-founder of Zeus eBikes Canada. Every specification read on 26 October 2026; corrections to milad@zeusebikes.ca.

Cover: a Playcut.ai rendering made from Tesway's own photograph of the X9 Ultra. The other images are from our listing.