Product Description
Folding step-through e-bike that fits anywhere
Apartment too small? Car trunk too tight? The F20 Flex folds at frame, stem, and pedals in seconds. This folding step-through e-bike slides under desks or into closets, and the open frame means no more awkward leg swings — just step on and go.
Dual-side torque sensor = feels like a normal bike, only faster
No jerky starts. No guessing. A dual-side torque sensor reads how hard you pedal and sends exactly the power you need. That’s why this pedal assist e-bike gives you smooth low-speed control in traffic and support on hills — like having a gentle tailwind all the time.
Big removable battery for 100km of real-world riding
The removable 36V 20Ah battery (720Wh) locks in place, pops out for indoor charging, and delivers up to 100km per charge. With 3A fast charging (~8 hours) and IPX5 protection, this long range electric bike laughs at range anxiety — commute all week or explore all day.
Dual suspension + puncture-resistant tires = comfort you’ll feel
City streets are rough. Your ride shouldn’t be. Dual suspension (40mm fork + 15mm seatpost) eats potholes and cobblestones, while 20×2.5" puncture-resistant tires block flats and grip wet pavement. This electric city bike turns bone-rattling roads into a smooth cruise.
7-speed gears, disc brakes, and everything included
No hidden costs. The bike comes with 7-speed Shimano gearing, mechanical disc brakes, a padded rear rack, full fenders, front & rear lights, and even a gift box (tube, brake pads, multi-tool). Plus 6km/h walk assist for pushing up ramps. It’s the most ready-to-ride folding electric bike。
Specification:
Brand:FAFREES
MODEL:F20 Flex
Type:Folding City Ebike
Tire size:20*2.5" Air tire
Frame material:Aluminum alloy
Default maximum speed of assisted mode:25km/h
Max range:75-100km
Max climbing Gradability:15°
Battery type:21700 Lithium-ion battery
Battery capacity:20Ah/720Wh
Motor rated power:250W
Motor location:Rear drive
Maximum torque:43N.m
Charger Input voltage:110-220V
Output voltage:42V
Rated current:3A
charging time:8-10H
Fork Type:Shock fork
Type of rear shock:Seat shock tube
Display type:LCD
6km/h walk assist mode:Yes
Cruise control:No
APP control:No
PAS level:0-3
Speed Sensor:Torque Sensor
Transmission:Shimano 7-Speed
Brake type:Mechanical disc brakes
Folding parts:Folding handlebar, frame, pedals
Headlight:Yes
Taillight:Yes
Operating temperature:（-20）℃-40℃
Waterproof grade:IPX5
Net Weight:26.5kg
Package weight:34.8kg
Battery weight:3.8kg
Load capacity:140kg
Unfolded size:164*67*120cm
Folded size:108*45*77cm
Package size:89*39*75cm
Recommend rider heights:165-198cm
Package contains
1x F20 Flex ebike
1x Charger
1x Owner's manual
1x Gift box (Including 1*Inner tube, 2*Valve caps, 2*Wheel reflectors, 2*Brake pads, 1*Key chain，1*Multifunctional tool, 1*13/15 Wrench)
