Bafang H640 / G0900 Rear 750W Hub Motor

Price range: £200.00 through £260.00

750W Rear Geared Hub Motor – High-Torque, High-Speed Performance for Demanding E-Bike Builds This powerful rear-drive hub motor delivers 750W of continuous rated power and up to 80Nm of torque, making it an excellent choice for off-road, cargo, or high-performance e-bike conversions. Paired with a high-output controller like our recommended 28A Bafang unit, this motor offers fast acceleration, excellent hill-climbing ability, and strong top-end speed.

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750W Rear Geared Hub Motor – High-Torque, High-Speed Performance for Powerful E-Bike Builds

This rear-drive motor is a true powerhouse, delivering 750W of continuous rated power and a maximum torque of 80Nm. Built for speed, strength, and acceleration, it’s ideal for riders who want maximum performance from their electric bike. When paired with a compatible high-output controller—such as the Bafang 28A controller we recommend—this motor delivers quick launches, responsive climbing ability, and strong top-end speed.

Engineered for durability and smooth operation, this hub motor is perfect for off-road, high-performance, or heavy-duty e-bike conversions.

SPECIFICATIONS

  • Motor Model: H650 RM G0900.D/DC
  • Motor Type: Rear Geared Hub

  • Rated Voltage: 48V

  • Rated Wattage: 750W

  • Maximum Torque: 80Nm

  • Weight: 5.6Kg

  • Brake Type: Disc only

  • Cable Exit: Left-hand (non-drive) side of axle

  • Cable Connector: Juliet L1121 11-pin screw-type connector

  • Spoke Specification: 36 Hole, 12G spokes

  • Gear Type: Cassette compatible

  • Ingress Protection (IP Rating): IPX6 – water-resistant

  • Dropout Width (O.L.D) Measurement: 138mm

  • Axle Dimensions: 10.5mm across flats, 14mm at widest

 

IMPORTANT NOTES

  • This motor exceeds UK road legal limits (250W max). It is intended for off-road, private land, or export use only unless properly licensed or restricted.

  • Always use the supplied disc rotor bolts. Using bolts that are too long can cause internal contact and prevent proper motor rotation.

  • Minimum disc rotor size is 180mm. We recommend using a 200mm rotor for optimal braking performance due to the motor’s power and weight.