موتور و کنترلر 3 کیلووات , QS MOTOR 138 3000W ,

1). Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are no need. Which save space.

2). It could be installed in the rear to save more space for battery.

3). Support regenerative braking

4). High efficiency: 85~92% 

Genearlly Spec:

1. Item: QS Motor 3000W 138 70H Mid Drive Motor
2. Motor Type: BLDC Permanent Magnet Inner Rotor Motor With Hall Sensor
3. Brand: QS Motor, QSMOTOR
4. Motor Design: Single axle 
5. Matched Wheel: 12inch Wheel (as default)
6. Magnet Height: 70mm, 40pcs, 5 pole pairs
7. Diameter of stator: 138mm
8. Rated Power: 3000W
9. Rated Voltage: 72V as default
10. Speed: 100KPH 
11. No-load rpm: 3800rpm without flux weakening, 6000RPM with flux weakening.
12. Max Torque: approx 56N.m without Reduction ratio, approx 247N.m with 1:4.77 Reduction ratio  
13. Reduction ratio: 1:4.77 (as default)
14. Max Efficiency: 88%
15. Continuous Battery Current: pending (72V)
16. Peak Battery Current: 120A (72V)
17. Suggest Peak Phase Current: 450A
18. Thermic Probe: None as default (KTY83/122 is available, if you need, please let sales man know).
19. Working Temperature: Pending
20. Single Hall Plate with waterproof connectors
21. 16mm² Cross Section of Phase Wire (not include insulation layer)
22. Hall Sensor Phasing angle: 120 degree
23. Waterproof Grade: IP54
24. Color: Black 
25. N.W./G.W.: 10.8kgs/11.5kgs   
26. Package Dimension: 34cm*34cm*33cm
27. Axle matched with belt