The FLX is an electric bike made for the urban explorer who's part cozy, part powerful! Its frame was tailored to keep you chill and comfortable, no matter how long you ride.
Two passengers can fit on its extra-long seat – or you can opt for a more spacious solo adventure.
Journey up to 100km with the FLX, and its display will show you current and average consumption, plus a unique range indicator that adjusts depending on the weather. So you'll always know how far you can go.
Power: 250 Watt – Bafang G062 Rear wheel motor
Battery: Removable battery. 43 Volt. 500Wh or 750Wh
Charging: 50V, 2A standard or 3A fast charger. Fully charged 500Wh battery 6,8 / 5 hours. Fully charged 750Wh battery 10 /6,5 hours.
Display: Advanced colour display with range indicator, actual and average energy consumption, actual and average speed, battery percentage.
Frame: Double coated steel frame
Seat: Hand-stitched leather seat
Colours: Black, yellow & army green
Wheels: 20” x 3,5” inch wheels
Tires: 20” x 4,00” inch CST extra fat tires
Lights: LED headlight with day light
Brakes: Hydraulic Shimano brakes
Handlebar: Aluminium handlebar
Driver height: 170 cm – 200 cm / 5.6 foot – 6.6 foot
Warranty: 5 year on the frame and 2 years on the rest of the bike
All of our Products come with a Full UK Warranty, see our Warranty Section for full details.

The new FLX, the Phat standard!
After two years of developing and testing, Phatfour proudly launched their newest fat bike, the FLX, in April 2023. The FLX is designed for the urban adventurer who likes comfort and power. The frame is designed in such a way that you always have a relaxed and pleasant sitting position. Two adults can easily fit on the extra long saddle, but of course you can also sit extra wide by yourself.
All day long carefree on the road
With a range up to 100 km, the FLX is perfect for long trips. The display shows both current and average consumption and has a special range indicator. This way you always know how much kilometers you can still ride, this also takes the weather conditions into account.


Direct Drive System
Phatfour developed the Direct Drive System for the FLX. This ensures a smooth and fast start and makes driving even more comfortable up to a speed of 25 km/h. As you are used to with Phatfour, the hydraulic brakes, from the A-brand Shimano, offer a lot of stopping power.The FLX meets all UK & EU standards and is available in three colours: black, yellow & army green.