Two bikes: TSDZ2 and BBS02 - Electricbike.com Ebike Forum
Amazon.com : New Version 52V 750w Tongsheng TSDZ2 ebike Kit Mid Motor,with Torque Sensor,Throttle/Brake/Front Light Included : Sports & Outdoors
Amazon.com : Pswpower 36V 250W/ 350W TSDZ2 Electric Bicycle Central Mid Motor with Torque Sensor and VLCD5/ XH-18 LCD Display and Coaster Brake Function (Ships from Germany) : Sports & Outdoors