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;