Technical Sheet – Tongsheng TSDZ8 750W 48V Mid-Drive Motor Kit

1. General Description

The Tongsheng TSDZ8 is a mid-drive motor designed to convert standard bicycles into e-bikes.
It is equipped with an integrated torque sensor, which provides natural and proportional assistance based on the force applied to the pedals.

2. Motor Specifications

• Model: Tongsheng TSDZ8
• Nominal power: 750 W
• Voltage: 48 V
• Sensor type: Torque sensor
• Maximum assisted speed: 45 km/h
• Position: Mid-drive, mounted at the bottom bracket
• Frame compatibility: Standard BSA 68–73 mm (I can add other standards if needed)

3. Controller

• Controller integrated into the motor
• Power: 750 W
• Maximum current: 23 A
• Nominal voltage: 48 V

4. Drivetrain

• Included chainring: 38T
• Material: ERGAL (high-strength aluminum)
• Chain compatibility:
  • For 12-speed drivetrains: SRAM chain only (due to specific profile tolerances)

5. Display

• Model: 860C
• Type: Color LCD
• Typical functions:
  • Assistance levels
  • Speed
  • Trip and total distance
  • Battery status
  • Advanced settings (depending on firmware version)

6. Assistance Operation

The motor uses a torque sensor, which:

• detects pedal force in real time
• delivers power smoothly and progressively
• provides a natural pedaling feel, similar to high-end e-bikes

7. Kit Contents

You can confirm what is included, but typically the kit contains:

• Tongsheng TSDZ8 motor
• Integrated controller
• 860C display
• 46T chainring
• Wiring
• Sensors and mounting accessories