TSDZ2B 48V 500W Mid Drive Motor Kit Torque Sensor Electric Bike DIY Concversion Kit Ebike Central Engine for Bottom Bracket 68-73mm Mountain Bike City/Road Bicycle

Description

Standard Universal: Fits most standard bike with 68-73mm bottom bracket, only fit for the bike with disc brake and chain drive system Torque Sensor & Throttle Function: The smart torque sensor can accurately detect the force on your foot and convert it into kinetic energy in time, with excellent starting performance. You can feel the power of starting the bike from your feet. It is to be the perfect combination of man and machine. If you get tired, meantime you also can use the throttle New Version: TSDZ2 Updated to TSDZ2B Which has two clutches designed on the main gear. Main gear is disengaged from the chain during riding, so it feels as easy to ride as a bicycle. It increase the center positioning, which ensures the radial spacing accuracy. It also improves waterproof performance. After changing to a new integrated part, the life of the engine is increased Mid Motor System: The weight of a bike is generally about 10-15kg, and the weight of the mid drive motor is about 2-4kg . The weight of TSDZ2B is 3.6Kg which occupies 19-26% of the bike, and it is located in the center of the bike, which can make the weight of the e-bike more uniform; keep the original structure of your bike and available for many kinds of bikes