Tongsheng TSDZ2 36V 250W 350W 48V 500W Torque Sensored DIY eBike Mid Drive Crank Motor Kit Electric Bike Central 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