Fatboy Harlem V3 Electric Bike
Step-Through Ease. Smarter Power. Built for Everyday.
The Fatboy Harlem V3 is the most accessible electric bike in the Fatboy range — and the most refined version yet. Built around a low step-through frame and an upright, relaxed riding position, it's the natural choice for commuters, school runs, family riding, and anyone who wants the full Fatboy experience without a high crossbar in the way. The V3 doesn't just carry the Harlem's easygoing character forward — it backs it up with Fatboy's most advanced technology to date.
At the heart of the V3 is the FBX Power Platform — developed alongside Bafang, FBX connects the battery, motor, and controller into one unified intelligent ecosystem. The result is smoother, more consistent power delivery across all nine assist levels, better efficiency, and a more natural riding feel from the moment you push off. The motor is the proven 52V BAFANG rear-hub rated at 500W continuous and 100Nm torque through a 1,560W peak controller — now managed smarter through FBX. The system also includes password-protected speed control, letting you set and lock a custom top speed for family or shared use — a genuinely useful feature for households with younger riders.
The V3 suspension is Fatboy's own proprietary design — an industry first for fat-tyre e-bikes, built from custom tooling engineered specifically for the V3's weight and geometry, with preload, compression, and rebound tuning front and rear. You can dial it in to your weight and preferred ride feel, which makes a real difference on longer commutes or when carrying a passenger. Stopping power comes from custom 4-piston calipers with metal sintered pads and cooling fins, paired with heavy-duty 203mm discs now 2.9mm thick — consistent, controlled braking under any condition. Ergonomics were fully reconsidered for the V3: lower-profile seat, refined handlebar position, and an updated crank ratio that keeps pedalling smooth at any speed.
Why Ride the Fatboy Harlem V3?
✅ Step-Through Frame – The most accessible entry point in the Fatboy range; ideal for smaller riders, commuters, and family use
✅ FBX Power Platform – Developed with Bafang, unifies battery, motor and controller for smoother power, better efficiency and smarter control
✅ Password-Protected Speed Control – Set and lock a custom top speed via FBX; perfect for family bikes and shared riders
✅ Custom Fatboy Suspension – Industry-first proprietary front fork with preload, compression and rebound tuning built for V3 geometry
✅ Fully Adjustable Front + Rear Suspension – Fine-tune your setup for any terrain, rider weight, or load
✅ 4-Piston Brakes with Metal Sintered Pads – Custom calipers, cooling fins, 203mm discs 2.9mm thick — consistent stopping under any condition
✅ BAFANG 500W Motor / 1,560W Peak / 100Nm Torque – Smooth, confident power for commuting, errands, and two-up riding
✅ Refined Ergonomics – Lower seat profile, new bar position, updated crank ratio for natural posture and all-day comfort
✅ Rear Cargo Rack + Passenger Footpegs – Rated to 180kg total; two-up ready from the factory
Tech Specs
Motor: 52V BAFANG rear-hub, 500W continuous rated output / 1,560W peak controller power / 100Nm torque
Power Platform: FBX — unified battery, motor and controller ecosystem developed with Bafang; includes password speed control
Battery: 52V 20Ah Samsung lithium-ion
Speed: 25km/h public road restriction
Suspension: Proprietary Fatboy front fork (preload, compression, rebound tuning) + fully adjustable rear mono-shock
Brakes: Custom 4-piston hydraulic calipers, metal sintered pads, cooling fins, 203mm discs 2.9mm thick (front and rear)
Tyres: Vee Rubber fat tyres (puncture-resistant)
Drivetrain: Shimano 7-speed
Display: Water/dirt-resistant LCD colour display with USB phone charging
Lights: Integrated front headlight with daytime running feature + rear tail light
Assist: PAS 1–9 cadence sensing + twist throttle with isolator (private property only)
Inclusions: Throttle with isolator, rear passenger footpegs, headlight, rear cargo rack, AU-certified charger
Max Load: 180kg (rider + passenger/cargo)
Charge Time: Approx. 4–6 hours full charge
Warranty: 2-year complete bike warranty
Frequently Asked Questions
Is the Fatboy Harlem V3 legal to ride on Australian roads?
Yes — when operated in pedal-assist mode restricted to 25km/h, the Harlem V3 meets Australian EPAC requirements and is legal for public road use in VIC, NSW, QLD, SA, ACT, WA, and TAS. The motor cuts out at 25km/h or when pedalling stops above 6km/h. The twist throttle is supplied with an isolator and must be disabled on public roads — it's for private property use only. Regulations vary slightly by state so call us on 03 9421 2293 if you want clarity before purchasing.
What's the real-world range on the Harlem V3?
Real-world range varies based on rider weight, terrain, tyre pressure, temperature, and assist level. The FBX platform improves efficiency over older Fatboy systems, meaning the 20Ah Samsung battery goes further under equivalent conditions. In mixed city riding at moderate assist expect 40–70km. For maximum range: use PAS 1–2 on flat sections, maintain recommended tyre pressure, and avoid repeated full-throttle starts. The Harlem V3 is tuned for relaxed everyday riding, so natural use tends to be efficient.
How does the Harlem V3 compare to the V2?
Both run the same 52V 20Ah Samsung battery and 500W BAFANG motor — so power and range are comparable. The V3 upgrades are substantial: the FBX unified power platform for smoother delivery and password speed control, Fatboy's proprietary custom suspension with full preload/compression/rebound tuning versus the V2's standard front fork with 30mm extra travel, upgraded 4-piston brakes with metal sintered pads and 2.9mm thick discs versus TEKTRO hydraulics, and refined ergonomics throughout. The V2 is the lighter original at a sharper clearance price. The V3 is the fully updated everyday machine with Fatboy's latest technology. Both are in our Melbourne showroom.
About Fatboy Electric Bikes
Fatboy built their reputation on one simple idea: fat tyres make everything more fun. Starting with the oversized tyre format that transformed beach cruiser riding, Fatboy evolved into one of Australia's most recognised electric bike brands by combining serious electric components with approachable, lifestyle-first design. The Harlem has always been the bike Fatboy recommends for families and first-time e-bike riders — and the V3 takes that accessibility and backs it up with the most advanced Fatboy technology ever built. Twelve Board Store is an authorised Fatboy dealer with full warranty coverage and a dedicated in-house service and repair team.
Why Buy from Twelve Board Store?
✔️ Free shipping Australia-wide
✔️ Melbourne showroom — demo rides available, try before you buy
✔️ Authorised Fatboy dealer with full 2-year warranty support
✔️ Every bike assembled, safety-checked and tuned by our in-house tech team before dispatch
✔️ Full-service electric bike workshop in-store for ongoing servicing and repairs
✔️ Flexible payment options including Afterpay & Zip
✔️ Specialists in snow, skate, and electric — 12 months a year
