1. Motor type: BLDC hub motor with permanent magnets
2. Motor design: twin off-axis with 17-inch rims
3. rim size: 2.5x17, 3.5x17
4. Matching tires: 110/70-17,90/90-17,120/70-17
5. magnet height: 35mm
6. number of pole pairs: 24 pairs
7. Rated power: 2000W
8. Peak power: 4000W 
9. Rated voltage: 48V
10. Maximum speed: 50-70kph (customizable)
11. Maximum no-load speed: 800RPM
12. Maximum torque: 120N.M
13. Maximum Efficiency: 86%
14. Continuous current: 48A
15. Maximum current: 60A
16. Brake Type: Disc Brake
17. Width of mounted rear fork: 200mm
18. Phase wire cross section: 6 mm2 19.
19. Hall sensor phase angle: 120 degrees 20.
20. temperature sensor: optional
21. Maximum operating temperature: 70 degrees, peak 120 degrees 22.
22. Waterproof rating: IP67
23. Color: Black
24. Northwest/G... Weight ： 17kgs / 18kgs 
25. Packing Size：44*43*34CM