🚴♂️ USIE Duotts F20 – Fat Tire All-Terrain Electric Bike
The USIE Duotts F20 is a compact yet powerful electric bike designed for both urban streets and rugged trails. Built with a lightweight aluminum frame and reinforced iron rear triangle, it delivers durability and stability in every ride.
Equipped with a 52V 750W high-performance motor and 65N·m of torque, the F20 handles slopes up to 55° with ease. Riders can enjoy multiple riding modes—pure electric, pedal assist (Level 0–5), and manual—supported by a responsive speed sensor and electric half throttle for flexible control.
The 52V 27Ah battery delivers 60–70 km in pure electric mode and 100–120 km with pedal assist, depending on terrain and rider weight. Hydraulic disc brakes with power-off functionality, a full aluminum front suspension fork, and 20×4.0 inch fat tires ensure safe and smooth riding over any surface.
Additional features include a multifunction horizontal LCD display, LED headlight, IPX4 waterproof rating, and a max load capacity of 150 kg. With a sleek black design, the Duotts F20 is ideal for riders between 170–200 cm in height.
✅ Specifications at a Glance
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Motor: 52V 750W | Torque: 65N·m | Max Climb Angle: 55°
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Battery: 52V 27Ah | Range: 60–70 km (pure electric), 100–120 km (assist)
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Brakes: Front & Rear Hydraulic Disc Brakes with Power Cut
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Suspension: All-aluminum shockproof front fork
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Tires: 20 × 4.0 inch fat tires
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Throttle: Electric half throttle
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Display: Horizontal LCD screen
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Charging Time: 12–14 hours | Charger: 58.8V 2A
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Waterproof Level: IPX4 | Max Load: 150 kg
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Recommended Rider Height: 170–200 cm
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Bike Weight: 42 kg | Gross Weight: 44 kg
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Color: Black
📦 Package Includes
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1 × USIE Duotts F20 Electric Bike
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1 × Certified Charger (58.8V 2A)
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1 × User Manual
Specification
| Specification |
Details |
| Item |
Specification |
| Model |
Duotts F20 |
| Frame |
Aluminum alloy |
| Brakes |
Power-off brake levers, front and rear hydraulic disc brakes, disc diameter: 180mm × 2.8mm |
| Front fork |
Full aluminum shock-absorbing front fork, travel: 120 mm |
| Range |
Approx. 50–70 km in pure electric mode, 130–140 km in pedal assist mode |
| Speed |
Factory default: 25 km/h; Max after unlocking: ~40 km/h |
| Net weight |
≈38 kg (±3%-5% tolerance) |
| Gross weight |
≈50 kg (±3%-6% tolerance) |
| Product size |
1740 × 1225 × 760 mm (Handlebar length: 76 cm) |
| Package size |
1550 × 310 × 830 mm |
| Tire size |
20 × 4.0 inches |
| Max climbing angle |
30° |
| Suitable height |
170–200 cm |
| Max load |
150 kg |
| Package contents |
Whole bike, multifunction tool kit, open-end wrench, 1 pair of pedals, front light, manual, charger, mirrors |
| Motor |
52V 750W single geared brushless high-speed motor |
| Torque |
70 NM |
| Sensor |
Speed sensor |
| Throttle |
Electric half-twist throttle |
| Battery |
52V 27AH, Size: 360 × 160 × 170 mm, Weight: 7.66 kg |
| Charger |
58.8V 2.8A, Charging time: 8–9 hours |
