Eunorau Flash AWD Dual-Motor Fat-Tire Electric Bike

Eunorau Flash AWD — All-Wheel-Drive Traction for Off-Road and Private Property

The Flash AWD puts a motor in each wheel. Front and rear 750W hub motors — 1,500W combined, 184 Nm of combined torque — drive both wheels at once, so when one wheel loses grip on snow, sand, wet roots, gravel, or a loose climb, the other keeps pulling. That is the whole point of all-wheel drive: it claws forward where a single-motor bike spins and stops. On a 20″ × 4.0″ CST fat-tire platform with a low, stable centre of gravity, the Flash is built to keep moving on the surfaces that defeat lighter bikes.

It is also the lightest all-wheel-drive bike in its class. The compact 6061 aluminium frame keeps the Flash at 82–92 lbs — well under the 120–165 lb steel-framed AWD cruisers it competes with — while still carrying a 440 lb payload, the highest in its comparison group. And it is the only one that expands: the 52V 16Ah primary battery accepts a second pack in the down tube and a third in the top tube for up to ~54Ah / ~2,808 Wh and a manufacturer-rated 220 miles — the way you buy back the range that two motors and fat tires spend.

Honest framing up front: this is a 1,500W off-road machine, not a road-legal commuter. The dual-motor system is well above Canada’s 500W Power-Assisted Bicycle limit, so the Flash AWD is built for trails, private land, hunting access, and work sites — not public roads or multi-use paths. If you want the same Flash platform in a road-legal-friendly form, see the mid-drive Flash 1000W. If you want maximum traction off the grid, this is the one. EXSHO 80mm fork. Hydraulic brakes, 180mm front and rear. 440 lb payload. UL certified. Two colours. Free Canada-wide shipping.

🇨🇦 Ships from Canada · Free shipping · Warranty included · 1-866-938-7580 — real humans answer

Why All-Wheel Drive Changes What a Fat Bike Can Do

A single-motor fat bike drives one wheel. On grippy ground that is fine. On the ground fat bikes are actually bought for — snow, sand, mud, wet roots, loose gravel, steep loose climbs — one driven wheel can break traction and spin, and the bike stalls. The Flash AWD puts a 750W motor in the front wheel and a 750W motor in the rear wheel, so both wheels pull at once. When the rear breaks loose, the front is still driving; when the front washes out on a climb, the rear is still pushing. It is the same reason an AWD truck keeps moving up an icy driveway that stops a two-wheel-drive one.

That capability is the Flash AWD’s whole reason to exist, and it is worth being clear-eyed about the trade-offs:

• Two motors use more energy than one. AWD plus 4.0″ fat tires is less efficient than a single-motor commuter, which is why the multi-battery system matters — it is how you get the range back.
• More power means it is not a PAB. 1,500W is triple the federal 500W bicycle limit. That is the cost of the traction: the Flash is an off-road and private-property machine, not a road-legal commuter. If road-legal is the priority, the mid-drive Flash 1000W or a true PAB commuter is the right tool.
• It is a heavier, more capable bike. At 82–92 lbs it is light for an AWD fat bike, but it is still a serious machine. Treat it like one.

If most of your riding is smooth pavement, you do not need all-wheel drive and you should not pay the range and legality cost for it. If you ride where traction is the problem — a northern winter, a sandy shoreline, a hunting concession, a back-forty work site — AWD is the single feature that decides whether you keep moving.

Key Features

• Dual 750W Hub Motors — 1,500W Combined, 184 Nm — A motor in each wheel for true all-wheel-drive traction. Both wheels pull together on snow, sand, gravel, and loose climbs, so the bike keeps moving when a single-motor bike would spin out. Wattage & torque guide →
• 52V 16Ah Primary Battery — Expandable to ~54Ah / ~2,808 Wh — The 832 Wh primary battery accepts a second 52V 17Ah pack in the down tube and a third 52V 21Ah pack in the top tube. Manufacturer-rated range climbs from 65 miles (primary) to 135 miles (dual) to 220 miles (triple) in best-case conditions — the way you offset the higher draw of two motors. Long-range eBike guide →
• 20″ × 4.0″ CST Fat Tires — A wide, low-pressure contact patch that floats over snow, sand, and soft trail instead of sinking, and soaks up bumps. The 20″ wheel diameter keeps the bike compact, stable, and low for confident low-speed handling in tight or technical terrain. Mounted on 20″ black alloy rims with stainless steel spokes.
• EXSHO STRONG-DH 80mm Front Fork — Compression Adjust + Lockout — A real adjustable fork: dial in compression for the terrain, or lock it out for efficient hard-surface pedalling. 80mm of travel takes the edge off the hits a fat tire does not fully absorb.
• Hydraulic Disc Brakes — 180mm Front and Rear, Motor Cutoff — Strong, consistent stopping power for a heavy, powerful bike, front and rear. The Eunorau brake levers cut both motors the instant you squeeze — essential on a 1,500W AWD machine.
• 440 lb Payload + JUSTGK Saddle — The highest payload in its comparison group. Handles a heavy rider plus gear, or two riders on the plush two-up JUSTGK saddle, with margin to spare.
• BC281 LCD Display + Eunorau GO App — Backlit display for speed, battery state, assist level, trip and odometer. The Eunorau GO app adds ride records, calorie tracking, and OTA firmware updates. This is also where the speed limit is set.
• Integrated LED Lighting + Brake-Activated Rear Light — Front LED with a handlebar switch for seeing and being seen on the trail; the rear LED brightens automatically under braking.
• Thumb Throttle — Full throttle control of both motors — how most riders will actually drive a high-power AWD bike through technical terrain.
• 4.0A Smart Charger — A faster 4.0A charger to keep the larger 52V battery system’s downtime reasonable.
• Compact 6061 Aluminium Step-Over Frame — Aluminium keeps the bike light for an AWD fat machine (82–92 lbs) and rust-free through Canadian winters. Recommended for riders 5’2″–6’4″.
• UL Certified — Third-party safety certified.
• Two Colours — Moon Black and Lunar Dust.

Everything Included

• Eunorau Flash AWD dual-motor fat-tire eBike (your choice of colour)
• 52V 16Ah primary lithium-ion battery (832 Wh)
• 4.0A US-standard smart charger
• Dual 750W hub motors, front and rear (pre-installed)
• EXSHO STRONG-DH 80mm front fork (pre-installed)
• 20″ × 4.0″ CST fat tires (mounted on black alloy rims with stainless spokes)
• Hydraulic disc brakes (pre-installed) — 180mm front and rear, motor cutoff
• BC281 LCD display + thumb throttle (pre-installed)
• Integrated LED headlight + rear LED with brake activation (pre-installed)
• JUSTGK saddle (pre-installed)
• Tool kit for final assembly
• Owner’s manual

Optional add-ons: a second battery (52V 17Ah, down tube) and a third battery (52V 21Ah, top tube) to extend range. Call 1-866-938-7580 to confirm current second- and third-battery availability for the Flash AWD before you order.

Shipping & Delivery

• Shipping: Free Canada-wide shipping
• Delivery: Standard Canada-wide delivery as per Zeus shipping policy
• Tracking: Tracking email sent once shipped
• Assembly: Ships partially assembled in a single box — toolkit included; final assembly typically involves the front wheel, handlebars, pedals, and seat

Warranty

The Flash AWD is covered by a layered warranty: a 1-month Zeus complimentary limited warranty (claim coordination), the Eunorau manufacturer warranty (2 years on the core system), and optional paid Zeus extended-protection plans (1, 2, 3, or 5 years). Standard wear items — tires, brake pads, chains, grips, and the saddle — and damage from misuse, racing, improper maintenance, or unauthorised modification are not covered. Because this is a high-power off-road machine, riding it outside its intended use can affect coverage. See our warranty page for full terms, or call 1-866-938-7580 to confirm the current Eunorau coverage on the Flash AWD before purchase.

What You Should Know Before Buying (Honest Take)

• It is not road-legal as a bicycle. 1,500W is triple the 500W federal PAB limit, so the Flash AWD is an off-road and private-property machine — trails, private land, hunting access, work sites. Some jurisdictions treat over-limit machines as motor vehicles needing registration and insurance a bike cannot satisfy. If you need to ride public roads or paths, this is the wrong bike; look at the mid-drive Flash 1000W or a true PAB commuter. Canadian eBike laws →
• Eunorau does not publish the sensor type, and we will not guess. The spec sheet does not state whether the Flash AWD pedal-assist is torque- or cadence-sensing. Most high-power AWD bikes in this class are cadence-plus-throttle, and most riders will ride this one on the throttle — but if torque-sensor feel matters to you, call us and we will confirm with Eunorau before you buy.
• The drivetrain spec is inconsistent on the manufacturer sheet. Eunorau’s page lists both a single-speed setup and an 8-speed derailleur (44T/36T) in different places. We will not print a gear count we cannot verify. On a 1,500W dual-motor bike the gears do less work than on a pedal-first bike, but if it affects your decision, call and we will confirm the shipping drivetrain.
• AWD spends range — budget for the extra batteries. Two motors and fat tires are less efficient than a single-motor commuter. Manufacturer range figures (65 / 135 / 220 miles) are best-case; a realistic Zeus estimate on the primary battery is roughly 40–65 km depending on AWD/throttle use and terrain, less in the cold. If you want real distance, plan to add the second or third battery.
• 82–92 lbs is light for an AWD fat bike — but still heavy. Lighter than the steel-framed AWD cruisers it competes with, but plan for ground-floor storage, a hitch rack rated for the weight, and a second set of hands for awkward lifts. Adding the extra batteries adds weight.
• The 80mm fork is a hardtail front-suspension setup, not full suspension. It is a real adjustable fork with lockout, and the fat tires add cushion, but there is no rear shock. For a do-anything off-road bike at this weight and price that is a reasonable call; if you want full suspension in this class, the Freesky Cheetah MT-380 has it.
• Ride it within its limits and gear up. A 1,500W AWD bike on loose terrain is fast and heavy. Wear a proper helmet (full-face for aggressive off-road), gloves, and eye protection, and learn the bike on easy ground before you push it. The motor cutoff brakes are there for a reason — use them.
• UL certified — we state what we can verify. Eunorau states “UL certified” for the Flash AWD without naming a specific standard number, so that is exactly what we claim. If your situation requires a specific certification (for example a particular building or insurer), call us and we will confirm what Eunorau can document.

Will It Fit You? — Sizing & Fit

The Flash AWD is a single-frame compact step-over fat bike recommended for riders 5’2″ to 6’4″. The 20″ wheels and compact frame keep the standover and centre of gravity low, which suits a wide height range and makes the bike manageable at low speed despite its power and weight.

Full Specifications

Who Is the Eunorau Flash AWD For?

• Off-road riders who fight for traction. Snow, sand, mud, wet roots, loose climbs — if your terrain makes a single-motor bike spin and stop, AWD is the feature that keeps you moving.
• Hunters and rural/work-site riders. Private land, access trails, and back-forty work where road-legal status is not the issue and traction, payload, and range are. The 440 lb payload and triple-battery range suit gear-hauling on rough ground.
• Riders who want the lightest, most expandable AWD. The aluminium frame makes the Flash the lightest in its AWD group, and the three-battery system means you can start with one pack and add range as you need it. Long-range eBike guide →
• Winter and shoulder-season off-road riders. Fat tires plus all-wheel drive plus an aluminium (rust-free) frame is a strong cold-weather combination on private trails. Run studded fat tires for ice. Winter eBike guide →
• Heavier riders and two-up riders. The 440 lb payload and the plush two-up JUSTGK saddle give margin a lighter bike does not.
• Riders comparing AWD fat bikes. If you are cross-shopping dual-motor machines, the Flash AWD’s low weight and expandability are its edge — see how it stacks up in the comparison table below.

Who it’s NOT for:

• Anyone who needs a road-legal commuter. 1,500W is well over the 500W PAB limit; this bike is off-road / private-property only. For road-legal riding, see the mid-drive Flash 1000W → or a true PAB commuter.
• Pavement-only riders. If you never ride loose or slippery terrain, you are paying the range and legality cost of AWD for nothing. A single-motor bike is the smarter buy.
• Riders who want the biggest single battery or most torque. The Eahora Romeo Pro II → brings a 3,120 Wh single battery and 240 Nm; the Freesky Cheetah MT-380 → brings 4,000W and full suspension.
• Apartment dwellers carrying a bike upstairs. Even at 82–92 lbs this is a heavy machine. Plan for ground-floor or garage storage.

How the Flash AWD Compares to Other AWD Fat Bikes at Zeus

Five all-wheel-drive and dual-motor fat bikes, five priorities. The Flash AWD’s edge is weight, payload, and battery expandability; the others lead on single-battery size, torque, or raw power.

👉 Wide table — scroll horizontally to see all five bikes.

Choose the Flash AWD if you want the lightest all-wheel-drive fat bike, the highest payload, and the ability to expand from one battery to three as your range needs grow — for off-road and private-property riding.

Choose the Eahora Romeo Pro II → for the biggest single battery (3,120 Wh) and the most combined torque (240 Nm) on 26″ fat tires.

Choose the Eahora Romeo 2 → if you want an AWD fat cruiser that ships PAB-compliant at 500W / 32 km/h with a huge 3,120 Wh battery and 20×5.0 tires.

Choose the Freesky Cheetah MT-380 → for maximum raw power (4,000W) and full suspension, with UL 2849 + UL 2271 certification.

Choose the Eahora DL2000 → for a heavy, moped-style 20×4.5 fat cruiser with a retro utility feel.

Prefer the same Flash platform in a road-legal-friendly mid-drive form? See the Eunorau Flash 1000W (mid-drive) →

Frequently Asked Questions

Is the Eunorau Flash AWD road-legal in Canada?

No — not as a Power-Assisted Bicycle. The dual 750W motors give 1,500W combined, far above Canada’s federal PAB limit of 500W nominal (Motor Vehicle Safety Regulations SOR/2000-180). Even though it ships speed-limited to 32 km/h, the wattage alone disqualifies it from PAB classification at any setting. Eunorau’s “Class 3” label is the US system, not Canadian legality. The Flash AWD is built for off-road and private-property use — trails, private land, hunting access, work sites. Some jurisdictions treat over-limit machines as motor vehicles. Confirm your provincial and municipal rules before riding anywhere public. Provincial eBike laws →

What does all-wheel drive actually do?

A motor in each wheel means power goes to both wheels at once. When one wheel breaks traction on snow, sand, mud, or a loose climb, the other keeps driving — the way an AWD vehicle keeps moving where a two-wheel-drive one bogs down. The trade-offs are real: two motors use more energy (lower range per watt-hour), and the extra power is why it is not a PAB. If you ride loose or slippery terrain, AWD is the feature that matters most; if you ride smooth pavement, you do not need it. Hub vs mid-drive →

How far can it really go, and how do the extra batteries work?

It ships with a 52V 16Ah primary (832 Wh) and accepts a 52V 17Ah down-tube pack and a 52V 21Ah top-tube pack for up to ~54Ah / ~2,808 Wh. Eunorau rates 65 mi (~105 km) primary, 135 mi (~217 km) dual, 220 mi (~354 km) triple — best-case figures. A realistic Zeus estimate on the primary battery is ~40–65 km depending on AWD/throttle use and terrain, less in the cold. The multi-battery system is how you buy back the range AWD and fat tires spend. Call 1-866-938-7580 to confirm current second/third battery availability. Long-range guide →

Does it have a torque sensor or a cadence sensor?

Eunorau does not publish the sensor type for the Flash AWD, so we will not claim one. Most high-power AWD bikes in this class are cadence-plus-throttle, and most riders ride them on the throttle — but if torque-sensor feel matters to you, call 1-866-938-7580 and we will confirm the current hardware with Eunorau before you buy. We would rather verify than guess.

How many gears does it have?

Eunorau’s spec sheet is internally inconsistent — it lists both a single-speed setup and an 8-speed derailleur (44T/36T) in different places. We will not print a gear count we cannot stand behind. On a 1,500W dual-motor bike the drivetrain does less work than on a pedal-first bike, but if the exact gearing affects your decision, call and we will confirm the shipping drivetrain.

Will the fat tires handle snow and sand?

Yes — that is what they are for. The 20″ × 4.0″ CST fat tires float over soft surfaces that would sink a narrow tire, and paired with all-wheel drive they are the reason the Flash keeps moving where lighter bikes stop. The 20″ wheel keeps the bike compact and low for stable, manoeuvrable low-speed handling. Run studded 20″ × 4.0″ tires for ice. Winter eBike guide →

How heavy is it, and how does that compare?

82–92 lbs depending on battery count — light for an AWD fat bike. The 6061 aluminium frame keeps it well under the 120–165 lb steel-framed AWD cruisers it competes with. It is still a heavy bicycle: plan for ground-floor storage, a hitch rack rated for the weight, and two people for awkward lifts. It also carries the highest payload in its group at 440 lb.

What warranty does it come with?

A 1-month Zeus complimentary limited warranty (claim coordination), the Eunorau manufacturer warranty (2 years on the core system), and optional paid Zeus extended-protection plans (1, 2, 3, or 5 years). Wear items (tires, pads, chain, grips, saddle) and damage from misuse, racing, or unauthorised modification are excluded; riding outside the bike’s intended off-road use can affect coverage. Call 1-866-938-7580 to confirm current terms, or see our warranty page.

How do I finance the Eunorau Flash AWD?

Multiple options at checkout: Klarna Pay-in-4 (0% interest, four biweekly payments), Shop Pay Instalments (0% interest, no credit check), or PayPlan by RBC for monthly payments over 3–60 months. Full financing guide — 7 ways to pay →

Documentation & Resources

Need help with the battery options, the sensor or drivetrain question, off-road legality, or financing? Call 1-866-938-7580 or email milad@zeusebikes.ca.

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Zeus eBikes Canada — Canadian eBike retailer shipping nationwide since 2023. Every Eunorau Flash AWD ships free across Canada with the Eunorau manufacturer warranty and authorised Canadian dealer support. Questions before you order? Call 1-866-938-7580 or email milad@zeusebikes.ca — real humans answer.

More resources:

• Eunorau Flash 1000W — the mid-drive sibling
• Freesky Cheetah MT-380 — 4,000W full-suspension AWD
• Eahora Romeo Pro II — 3,120 Wh AWD fat cruiser
• Canadian eBike Laws by Province (2026)
• 500W vs 750W vs 1000W — Which Wattage Is Right?
• Best eBikes for Canadian Winter (2026)
• How to Finance an eBike in Canada — 7 Ways