Rated voltage (DCV): 36V. Rated power (W): 250W. Pedal sensor: Torque Sensor Is Integrated Into The Motor. Bottom Bracket Length: 68-73mm. Bottom Bracket Diameter: 34-36mm. Noise level (dB):? 55. Current cutoff as long as pedaling stopped. 1 PC 36V250W Mid-Drive Motor 1 PAIR Brake Levels or Brake Sensor 1 PC Thumb Throttle 1 PC Display (Optional) 1 PC Power Connection Cable 1 PC Installation Tools 1 Pairs Crank-Arm 1 PC Speed Detective Sensor. Tongsheng TSDZ2B 36V 250W Electric Bicycle Conversion Kit new Version. TSDZ2B, the improved version of TSDZ2 with a new look. The kit helps convert your bike into an electric bike with a 250W motor and built-in torque sensor, which will give you a smooth riding experience as the motor adjusts its power according to your pedaling force. This motor crank motor with torque sensor, integrated with a torque sensor, the maximum torque is 80 Nm, efficiency? 80%. Torque sensors create a smooth transition between manual pedaling and electric assistance, replicating the sensation of riding a traditional bicycle. The package includes all the necessary parts, with a 42 tooth chainring. Compatible with most standard bikes with 68-73mm bottom bracket and 34-36mm inner diameter. Only suitable for bicycles equipped with disc brakes, V-brakes and a chain drive system. Multifunctional display selection? Here have 3 type display for you choose. DZ40, SW2-M58 and EKD01. The hot sale type it is EKD01. All three display offer an unparalleled experience in terms of both appearance and practical use.