tongsheng tsdz2 36v 250w 350w 48v 500w torque sensored diy ebike mid drive crank motor kit electric bike motor conversion kit

fits 95% of standard bike frames with 68-73mm bottom bracket; 30% lighter than a bafang motor for almost the same power output; built-in torque and cadence sensor - this results in much smoother acceleration than any cadence sensored mid motor; easy to install. kit includes all installation hardware and tools; the motor has an extra support mount - resulting in a much more reliable install than a bafang bbs motor;