The X1 Pro Gen 4 is an incredibly high - powered mid - drive electric bike conversion kit perfect for those seeking extreme power, off - road adventures, or utility use. It's rated at a whopping 5000W and 250N.m. The package comes with everything you need to convert your bike, except for the battery. Here's what's included: a motor - reduction assembly, a 219H chainring - reduction assembly, a bicycle chainring with a chainring cover, a 219H golden KMC chain, an ISIS splined bottom bracket and spindle, a 165mm/175mm crank arm set, a Gen 4 torque sensor, an X12 controller (5000W), a built - in bashguard, a waterproof wire harness, a motor hanger, spacers for different versions (3, 5, & 7mm for BSA threaded 68/73/83mm version and 2x 2mm for BB92 version), an SW102 (up to 52V)/DS103 Display (up to 72V), various throttle options (thumb, half - twist, full twist), a magnetic speed sensor, optional magnetic brake sensors, and an e - copy of the user manual.

Using this e - bike conversion kit is a breeze. First, make sure you have a compatible battery. Then, start by installing the motor - reduction assembly onto your bike, followed by the chainring - reduction assembly and other components as listed in the package. Connect the wires carefully using the waterproof wire harness. Choose the throttle that suits you best and install the display. Before you hit the road, check all the connections to ensure they are secure. When using the bike, be aware of the power it has, especially on off - road terrains. For maintenance, keep the components clean, especially after off - road use. Check the chain regularly for wear and lubricate it when needed. If you're not using the bike for a long time, store it in a dry place. And always refer to the user manual for detailed instructions and safety guidelines.