Rim: Double-wall Aluminium Alloy Rim. Wheel Bottom bracket: Front 100-105mm, Rear 135mm.
Torque: 30/33/45 for 250W 350W 500W. The motor is suitable for thread freewheel, not suitable for cassette. If you need a motor suitable for cassette, please contact. Rated Voltage:36V Rated Power:250W Rated Speed:about 45-50km/h RPM:320 RPM TorqueN.Number of motor poles :10 Brake Type:Disc Brake Position: Front/Rear Construction: Gearless Operating Temperature(?): -20-45 IP Grade: IP65 Wheel Size (inch) : 20''24''26''27.5''28''29''700C Tyre: Brushless Gearless hub motor Spokes Specification: 12G Rated Efficiency(%): >=80 Fork(mm): 135mm rear rotate Front 100mm Noise(db).
Rated Voltage:36V Rated Power:500 W Rated Speed:about 45-50km/h RPM:350 RPM TorqueN. Rated Voltage:48V Rated Power:1000W Rated Speed:about 45-50km/h RPM:372-433 RPM TorqueN. Number of motor poles :23 Brake Type:Disc Brake Position: Front/Rear Construction: Gearless Operating Temperature(?): -20-45 IP Grade: IP65 Wheel Size (inch) : 20''24''26''27.5''28''29''700C Tyre: Brushless Gearless hub motor Spokes Specification: 12G Rated Efficiency(%): >=80 Fork(mm): 135mm rear rotate Noise(db). Rated Voltage:48V Rated Power:1500W Rated Speed:about 50-55km/h RPM:414-487 RPM TorqueN.
Number of motor poles :23 Brake Type:Disc Brake Position: Front/Rear Construction: Gearless Operating Temperature(?): -20-45 Wheel Size (inch) : 20''24''26''27.5''28''29''700C Tyre: Brushless Gearless hub motor Spokes Specification: 12G Rated Efficiency(%): >=80 Fork(mm): 135mm rear rotate Noise(db). Rated Voltage:48V Rated Power:2000W Rated Speed:about 50-60km/h RPM:442-497 RPM TorqueN. M Brake Type:Disc Brake Position: Front/Rear Construction: Gearless Operating Temperature(?): -20-45 Wheel Size (inch) : 20''24''26''27.5''28''29''700C Tyre: Brushless Gearless hub motor Spokes Specification: 12G Rated Efficiency(%): >=80 Fork(mm): 135mm rear rotate Noise(db).