Tongsheng TSDZ8 48V 750W — Torque-Sensor Mid-Drive Electric Bike Conversion Motor Kit
Upgrade standard 68–73 mm bottom-bracket bicycles into a high-torque pedal-assist electric bike with the Tongsheng TSDZ8 48V 750W mid-drive conversion kit. Unlike cadence-only motors, the integrated bilateral torque sensor responds proportionally to your pedaling force for natural, intuitive hill-climbing performance.
- Brand & Model: Tongsheng TSDZ8 48V 750W Mid-Drive Motor Kit
- Rated Voltage & Power: 48V DC | 750W Brushless Geared Mid-Drive Motor
- Max Torque: 140 N.m high-torque output for steep trail and cargo climbing
- Pedal Assist System: Integrated dual-side torque sensor + thumb throttle override
- Bottom Bracket Compatibility: Fits standard 68–73 mm (2.68–2.87 in) BSA threaded bottom brackets
- Waterproof Rating: IPX5 weather-resistant motor housing with waterproof quick-disconnect wiring harness
- Motor Weight: Approx. 10.6 lbs (13.2 lbs complete kit with cranks, chainring, LCD display, and hardware)
Includes the Tongsheng TSDZ8 48V 750W mid-drive motor, chainwheel, left and right crank arms, LCD display with control pad, thumb throttle, speed sensor with magnet, wiring harness, and mounting hardware.









