1. motor type: BLDC hub motor with permanent magnets oversized slot winding
2. motor design: dual off-axis with 14-inch rims
3. rim size: 2.5x14,3.5x14
4. Matching tires: 100/90-14, 120/70-14, 130/70-14
5. magnet height and thickness: 40MM
6. Lamination: 0.35mm
7. Number of pole pairs: 24 pairs
8. Nominal power: 3000W
9. Nominal voltage: 48V / 60V / 72V
10. Speed: 80-90km/h (customizable)
11. Maximum no-load speed: 400-1200RPM (customizable)
12. Maximum torque: 150N.M
13. Maximum operating current: 70A
14. Maximum efficiency: 88%
15. Brake Type: Disc Brake
16. Mounting rear fork width: 200mm
17. Bearing type: 6206/6205 
18. Phase line cross section: 8mm2
19. Hall sensor phase angle: 120 degrees
20. Temperature sensor: KT83-122
21. Maximum operating temperature: 80 degrees, peak 120 degrees
22. Waterproof rating: IP66
24. Northwest/G... Weight ： 17kgs / 18kgs
25. Package size: 44*43*34CM