QS273 4000W 50H Electric Bike Spoke Hub Motor V3 Type 152mm drop-outs

This motor is specially customs for the high-power electric bicycle or motorcycle,which with 150mm rear fork width and sprocket!

General Sepc.

1. Motor type: BLDC Hub Motor with Hall sensors
2. Motor design:Spoke Hub Motor with 36 spoke holes
3. Motor rim size: Can be fitted 17-24inch bike or moped rim
4. Magnet:40mm, 16 pole pairs
5. Rated power: 4000W
6. Peak power: Potential to 8000W
7. Rated voltage: 72V as default
8. Max. speed: 80kph as default, can be customs,too
9. Max. torque: 200n.m
10. Max. efficiency: 90%
11. Peak current: 110A at 72V
12. Continious current: 55A at 72V
13. Peak phase current:250A
14. Drop-outs: 152mm
15. With english thread for single sprocket
16. Double hall sensor group
17. Cross section of the phase wire: 16mm2
18. Water proof: IP54
19. Weight: 18kgs

The speed of winding Kv can be customized!