The HARLEM – V3 Ultra by FATBOY BIKES
Step Through 2 Seater Fat Wheel Electric bike – UL2849 version
MOTOR
52V BAFANG HUB Motor with 500W continuous rated power.
BATTERY
52V 20AH SAMSUNG Lithium-ion Battery.
CHARGE TIME
4-6 Hours Full Charge.
WARRANTY
2 Years Complete Bike Warranty.
DRIVE MODE
Cadence Sensing Pedal Assist + Twist Throttle w. Isolator included in box.
DISPLAY
Water & Dirt Resistant LCD Colour Display w. Phone Charging.
SPEED
Restricted 25 km/h Public Use.
Unlockable to 50 km / h for private property use only
SUSPENSION
Industry leading front and rear suspension.
GEARS
SHIMANO 7 Speed
BRAKES
Custom 4-Piston brakes with cooling fins.
WEIGHT CAPACITY
180 kgs Carrying Weight
CRANK
High Quality Ounce Alloy Crank
BIKE WEIGHT
45KG including battery
BOX DIMENSIONS
190cm x 26cm x 90cm | 55KG Boxed
The Harlem is built to make riding easy, welcoming and fun. Smooth, approachable and always reliable, it turns daily trips into stress-free moments. The latest version is more efficient, more comfortable and more capable. From school runs to coffee catch ups, it keeps things simple while fitting right into family life. The step through frame makes it an ideal choice for smaller riders or anyone who wants maximum comfort with minimum effort.
Developed alongside Bafang, FBX is a unified power architecture that connects the battery, motor and controller into one intelligent ecosystem. The result is a smoother ride, unrivalled efficiency and a new level of control built into the core of every Fatboy V3.
The new Fatboy front suspension is an industry first for fat-tire e-bikes. Built from our own tooling, they are engineered to match the weight and geometry of every Fatboy V3. The front suspension includes preload, compression and rebound tuning, allowing precise control over how the bike feels on every ride.
The Harlem, Scrambler and Bagus now feature fully adjustable front and rear suspension, giving you the freedom to fine tune your setup for any terrain.
Our upgraded braking system uses custom components built specifically for Fatboy bikes. Instead of off-the-shelf parts, our 4-piston calipers run metal sintered pads with custom-designed cooling fins to manage heat at high speeds and deliver consistent performance in all conditions.
Paired with Fatboy moulded brake levers and heavy-duty 203mm discs now 2.9mm thick, the system delivers stronger, longer-lasting and more controlled stopping power on every ride.
From the first sketch to the final ride, comfort shaped the V3. A lower-profile seat welcomes more riders, new bars and grips set a comfortable posture, and a refined crank ratio keeps high-speed pedalling smooth and effortless.
FBX introduces smart password protection that allows you to set and secure a custom top speed for your family bike. Whether you are creating safer limits for younger riders or simply managing shared access, the bike stays within your chosen speed until the password is entered.
Bagus, Scrambler and Harlem V3 models have variable maximum continuous power modes of Class 1 - 200 watts, Class 2 - 250 watts, Class 3 - 500 watts with a max load of 180 kgs. In the opinion of Fatboy Bikes this is inline with NSW EPAC legislation. Throttles are strictly for private property use and should be isolated when riding in public.
DNA V3 model is built in line with EN15194:2017. In the opinion of Fatboy Bikes this is inline with National EPAC legislation.
Before using this vehicle, check the applicable local laws relating to your intended use of the vehicle on roads and road related areas.