This extension cable (or speed sensor, depending on the version chosen) is designed for Tongsheng TSDZ2 and TSDZ2B mid-drive motors.
It can either extend the connection between the motor and the speed sensor, or completely replace the original sensor.
Essential for ensuring accurate speed readings, this component guarantees the correct operation of the electric assist system and compatibility with the VLCD5, VLCD6, XH18 or 850C displays.
The extension cable is particularly useful for long frames, non-standard bikes or set-ups requiring a specific cable route.
Key features
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Compatible with Tongsheng TSDZ2 and TSDZ2B
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Available as an extension cable or a complete speed sensor
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6-pin connector compatible with Tongsheng systems
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Simple, plug-and-play installation
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Guarantees reliable and stable speed detection
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Ideal for long frames, cargo bikes or complex geometries
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Ensures the correct operation of the pedal-assist system
Technical specifications
| Feature |
Details |
| Brand / Model |
Tongsheng – Extension / Speed Sensor TSDZ2 / TSDZ2B |
| Type |
6-pin extension cable or speed sensor |
| Compatibility |
TSDZ2 / TSDZ2B (mid-drive motor) |
| Connectors |
6-pin (Tongsheng standard) |
| Function |
Transmission of speed signal to the controller |
| Available lengths |
depending on version (usually 50–110 cm) |
| Sensor mounting |
Stay or rear dropout (magnet on the wheel) |
| Voltage |
Powered via the engine wiring harness |
