The X1 Pro Gen 4 is a high-powered mid-drive electric bike conversion kit made for extreme power, off-road, and utility use. Rated at 5000W & 250N.m.

The package includes everything you need to convert your bike except the battery:

1. Motor-reduction assembly
2. 219H chainring-reduction assembly
3. Bicycle chainring with chainring cover
4. 219H golden KMC chain
5. ISIS splined bottom bracket & spindle
6. 165mm/ 175mm crank arm set
7. Gen 4 torque sensor
8. X12 controller (5000W)
9. Built-in bashguard
10. Waterproof wire harness
11. Motor hanger
12. 3, 5, & 7mm spacers for BSA threaded 68/73/83mm version / 2x 2mm spacers for BB92 version
13. SW102 (up to 52V)/ DS103 Display (up to 72V)
14. Thumb throttle/ Half-twist throttle/ Full twist throttle
15. Magnetic speed sensor
16. Magnetic brake sensors (optional)
17. User manual (ecopy)