The Bafang BBS02 mid drive conversion Ebike kit comes with a motor, mounting hardware, throttle, 170mm crank arms, speed sensor with magnet, mechanical brake levers with cutoff switch if desired (not required for system to operate), display, and main wiring harness. No soldering or knowledge of electronics required, just install the parts, plug the connectors and zip-tie the cables. Your local bike shop may install this for you if you don't want to install it yourself. The 750 watt motor is well engineered, lightweight, a powerful climber, fast, and water resistant (IP65 rated). Unlike hub motors, the mid drive system utilizes your bicycles rear gears offering much better hill climbing performance. The motor free wheels and feels like a normal bike when pedaling if the battery runs out, direct drive hub motors have drag and feel like an exercise bike when the battery runs out. The motor uses pedal assist sensors (PAS) to help you pedal along and has 9 progressive levels of assistance to meet your desired amount of motor help, or you can use the throttle only and not pedal at all if desired. Motors are programmed for 9 levels of assistance with throttle providing 100% power in any PAS level 1-9. This simply means you can be in assist level 3 for example, but if you need more power you can use the throttle to provide full power while in assist level 3 or any level 1-9. The motor provides 120 Nm of torque and a top speed of 130 rpm. Bafang designed this electric bike mid drive motor kit to fit frames with 68mm bottom brackets (it can fit in 73mm bottom brackets, but may not be able to use both M33 lock rings and will require longer mounting bolts and 5mm spacers included free of charge). If your BB width is larger than 73mm you will need to get a BBSHD motor because they are available in sizes that fit wider BB shells.
Manual for full color display DPC-14: click here
Manual for bafang bbs02 C961 display: click here
Manual for bafang bbs02 mid drive motor: click here