Specifications:        Top Speed: 31-37mph / 50-60 kph base on 28 inch wheel        Battery Life: Over 800 Charges        Charge Time: 5 Hours          Kit Includes:        1. 48V1000W Front Motor/ Rear screw freewheel motor...

Specifications:        Top Speed: 31mph / 50 kph base on 26 inch wheel        Battery Life: Over 800 Charges        Charge Time: 5 Hours        Kit Includes:        1.48V500W bafang front Motor/Rear screw freewheel motor with 20/24/26/27.5/28...

Specifications:        Top Speed: 31mph / 50 kph base on 28inch wheel        Battery Life: Over 800 Charges        Charge Time: 5 Hours          Kit Includes:        1.36V500W Bafang BPM front hub motor with 20/24/26/27.5/28inch rim  ...

Specifications:      Top Speed: 22-25 mph (35-40 kph) based on 28 inch wheel      Battery Life: Over 800 Charges      Charge Time: 5 Hours       This type of sensor is based on measurement of chain tension, with designated mounting angle, being compatible...

Specifications: Top Speed: 20 mph / 32 kph base on 28 inch wheel Battery Life: Over 800 Charges Charge Time: 5 Hours Kit Includes:        1. Bafang 36V250W G020 255RPM Front & Rear screw freewheel motor with 20/24/26/27.5/28 inch rim        2. 36V15A...

TONGSHENG TSDZ2B conversion kit contains the following components: 36V350W / 48V500W / 52V750W Motor 42T Chain Wheel 170mm Crank Speed Sensor BC281 LCD Bluetooth Display remote with "EUNORAU GO" APP Thumb Throttle Brake Lever (BR-3) EB-BUS Waterproof Cable 1T4 Tools