Product Description
FAFREES F20 ULTRA · Moto‑Grade Fat‑Tyre Electric Bike
The FAFREES F20 ULTRA is a non‑folding moto‑grade fat‑tyre e‑bike. With 5.0″ ultra‑wide tyres, a 1200Wh high‑capacity battery, 79N·m torque, and front and rear hydraulic suspension – it's not designed for city commuting. It's built to let you go wherever you want on weekends, without worrying about road conditions.
1200Wh ultra‑large capacity, 120‑140km range
25Ah LG 21700 lithium battery, total energy 1200Wh. Pure electric range 80‑100km, assisted range 120‑140km. With a 20km daily commute, one charge still has plenty left after a full week; for a 100km weekend trip, you can ride out and back without searching for outlets along the way. The battery is removable – take it home to charge, full in 8 hours. IPX5 waterproofing – rain won't hold you back.
79N·m torque, 20° slopes handled with ease
Rear‑drive motor with 79N·m peak torque and 20° max climb angle. Garage exits, overpasses, dirt trails – no run‑up needed, motor engagement is smooth and steady. Torque delivery is direct – brisk starts at traffic lights, confident climbing even with load.
20×5.0″ ultra‑wide fat tyres + front and rear hydraulic suspension – rough roads feel like flat ground
5.0″ ultra‑wide tyres – a full inch wider than 4.0″ – with an even larger contact patch. Snow, sand, gravel, city asphalt – all handled with ease. Floatation and grip are ample – no slipping on wet surfaces, no wobbling through corners. Front and rear hydraulic suspension – 100mm fork travel and 100mm rear shock travel – over speed bumps and potholes, what reaches your hands is gentle undulation, not harsh shocks. This is the biggest difference between the F20 ULTRA and other models in the F20 series.
Mechanical disc brakes + Shimano 7‑speed – reliable and sufficient
Front and rear mechanical disc brakes deliver direct and reliable stopping power. The simple construction makes maintenance easy – you can handle it yourself without much trouble. If you're more price‑sensitive or prefer to maintain your own bike, the cable‑brake version is an equally dependable choice. Shimano 7‑speed gearing covers flats and climbs with smooth, crisp shifts.
Moto‑grade frame, solid and uncompromised
The non‑folding design provides better frame rigidity and greater stability on long rides. Net weight 40kg, aluminium alloy frame balances strength and lightness. Handlebar height 111cm, seat height 84cm, fits riders 160‑200cm. Max load 130kg – carrying a passenger or cargo is handled with ease.
LCD display + five riding modes
LCD screen clearly shows speed, battery level, mileage, and gear. 0‑5 assist levels – pure electric, assist, and human modes switch freely.
Product parameters
Model: F20 ULTRA (cable brake version)
Unfolded size: 182×74.5×111cm
Handlebar height: 111cm
Seat height: 84cm
Package size: 151×33×89cm
Tyre: 20×5.0″
Pedal‑ground clearance: 16.5cm
Suitable height: 160‑200cm
Net weight: 40kg
Package weight: 48.5kg
Battery weight: 5.3kg
Max load: 130kg
Frame material: Aluminium alloy
Tyre type: Pneumatic
Max climb angle: 20°
Max torque: 79N·m
Drive type: Rear drive
Battery type: LG 21700 lithium‑ion
Rated voltage: 48V
Input voltage: 54.6V
Battery capacity: 25Ah / 1200Wh
Undervoltage protection: 41±1V
Overcurrent protection: 25±1A
Charger input: 110‑240V
Charger output: 54.6V 3A
Charging time: approx. 8 hours
Pure electric range: 80‑100km
Assisted range: 120‑140km
Fork type: Hydraulic suspension fork
Fork travel: 100mm
Rear shock: Hydraulic shock absorber
Rear shock travel: 100mm
Brakes: Front and rear mechanical disc brakes
Gears: Shimano 7‑speed
Display: LCD
Assist levels: 0‑5
Lighting: Headlight, taillight
Riding modes: Human/assist/pure electric
Waterproof rating: IPX5
Operating temperature: -20~40℃
