Anyone know anything about this http://www.alibaba.com/product-detail/36v250w-intelligent-torque-sensor-mid-drive_60241398421.html It has a torque sensor and looks very professional.
The company website http://www.xmaxebike.com/ shows some bikes with the kit installed but can't find details of the kit itself.
The company website http://www.xmaxebike.com/ shows some bikes with the kit installed but can't find details of the kit itself.