Fatboy Harlem V3 Ultra

The FatBoy Harlem V3 Ultra electric fat bike is the most refined step-through fat-tyre e-bike in Australia. Everything that made the Harlem a family favourite — its welcoming low frame, two-up capability, and effortless day-to-day comfort — is back, but completely evolved. Smarter power. Custom suspension. Brakes built to last. This is the e-bike for riders who want to ride more, with less effort, every single day.

⚡ FBX Intelligent Power Platform The V3 Ultra runs Fatboy's new FBX power architecture, developed alongside Bafang. Unlike standard e-bikes, where the battery, motor, and controller operate as separate parts bolted together, FBX connects them into one unified intelligent ecosystem. The result is smoother power delivery, better efficiency across all nine assist levels, and a more responsive feel — whether you're cruising to the café or doing the school run.

Motor: 52V Bafang rear-hub, 500W continuous / 1,560W peak output Torque: 100 Nm Battery: 52V 20Ah Samsung lithium-ion (Ultra spec) Charge time: 4–6 hours full charge Speed: Restricted to 25 km/h for public road use (EPAC compliant) Assist modes: PAS 1–9 cadence sensing + twist throttle (private property only).

Step-Through Frame — Ride for Everyone The Harlem was built around one idea: riding should be easy for everyone. The low step-through frame makes mounting and dismounting effortless — ideal for shorter riders, those with limited mobility, or anyone who simply wants a more relaxed, natural start to every ride. No swinging a leg over. Just hop on and go.

Industry-First Custom Suspension Fatboy engineered the V3's front fork from their own tooling — the first of its kind for fat-tyre e-bikes. It's built specifically to match the weight and geometry of the Harlem, not adapted from an off-the-shelf design.

Fully adjustable preload, compression, and rebound tuning front and rear. Rear fully adjustable mono-shock. Dial in your setup for smooth suburban streets, shared paths, or weekend coastal rides.

Every braking component on the Harlem V3 Ultra is purpose-built for Fatboy — not sourced off the shelf.

4-piston hydraulic callipers with metal sintered pads. Custom-designed cooling fins to manage heat at speed. Heavy-duty 203mm discs, 2.9mm thick (front and rear), Fatboy moulded brake levers for confident control in all conditions.

Refined Ergonomics for All-Day Comfort. From the first sketch to the final ride, the V3 was designed around the rider. A lower-profile seat welcomes a wider range of body types, updated handlebars promote a natural, upright posture, and a refined crank ratio keeps high-speed pedalling smooth and effortless — from the school drop-off to the weekend loop.

Smart Family Features The Harlem V3 Ultra includes FBX password-protected speed limiting, letting you set a custom top speed for younger or less experienced riders. Whether it's a shared family bike or a hand-me-down to a teen, the bike stays within your chosen speed until the password is entered.

What's Included: Every FatBoy Harlem V3 Ultra comes ready to ride:

Twist throttle with isolator (included; for private property use). Rear passenger footpegs — two-up rated up to 180 kg total. Super-bright headlight with DRL. Rear cargo rack. Puncture-resistant Vee Rubber fat tyres. Shimano 7-speed drivetrain. Water/dirt-resistant LCD colour display with USB phone charging, AU-certified charger.

Key Specifications:

🇦🇺 Why Buy from Manly Bikes? Authorised FatBoy dealer with full 2-year warranty support. An expert team who ride and knows these bikes. Pick up in store at Manly, NSW. Local service and support — not just a website.

⚠️ Compliance Notice The Harlem V3 Ultra, when operated in pedal-assist mode restricted to 25 km/h, is designed to align with Australian EPAC legislation. The twist throttle is included for private property use only and must be isolated when riding on public roads or paths. Always check your local state and territory laws before riding.