The X1 Pro Gen 3 is a high-powered mid-drive electric bike conversion kit made for extreme power, off-road, & utility use. Rated at 3500W & 150N.m. or 5000W & 250N.m.
Includes 750c, ds103 or sw102 Display which can be used with batteries up to 72v depending on display. 
The package includes everything you need to convert your bike except the battery:
Motor-reduction assembly
219H chainring-reduction assembly
Bicycle chainring with chainring cover
219H golden KMC chain
ISIS splined bottom bracket & spindle
165mm/ 175mm crank arm set
Gen 3 torque sensing freewheel module
CYC X6 controller (3500W)
Built-in bashguard
Waterproof wire harness - 1t2 is included unless brakes are selected, then a 4t1 harness is included. 
Motor hanger
3, 5, & 7mm spacers for BSA threaded 68/73/83mm version / 2x 2mm spacers for BB92 version
SW102 / DS103 Display (up to 52V) or 750c Display (up to 72V)*750c must be set to 3 assist levels & only has one mode (Race)
Thumb throttle/ Half-twist throttle/ Full twist throttle
Magnetic speed sensor 
Magnetic brake sensors (optional)
User manual (ecopy)