The Tongsheng TSDZ2 is the benchmark torque-sensing mid-drive conversion kit, prized for its natural, bike-like ride feel. Unlike cheaper cadence-only systems, the TSDZ2 measures how hard you pedal and delivers proportional assistance through the bottom bracket, so power flows smoothly with your effort rather than switching on and off. This 36V 250W version is supplied with pedal-assist only (no hand throttle), making it road-legal in the UK (EAPC) for use on public roads and cycle paths by riders aged 14 and over, with no licence, tax or insurance required. The kit fits most standard threaded 68-73mm bottom bracket frames and includes the motor unit, VLCD5 display, PAS, brake cut-off levers and wiring loom. A genuine Tongsheng unit (open-source firmware compatible) with central weight distribution for balanced handling.

Tongsheng TSDZ2 250W Torque-Sensing Mid-Drive Kit (36V) – Road Legal
UK road-legal (EAPC)
£349.00
Price includes 20% VAT.
Genuine Tongsheng TSDZ2 250W 36V torque-sensing mid-drive conversion kit. Pedal-assist only and road-legal in the UK (EAPC).
About this item
- Throttle: None
- Motor Power: 250W (continuous)
- Motor type: Mid-drive (bottom bracket), torque-sensing
- Rated power: 250W
- Voltage: 36V
- Sensor: Torque + cadence + speed
- Display: VLCD5
In stock — dispatched within 2–3 working days
Free UK delivery on bikes · 30-day returns
| Brand | |
|---|---|
| Throttle | None |
| Motor Power | 250W (continuous) |
| Motor type | Mid-drive (bottom bracket), torque-sensing |
| Rated power | 250W |
| Voltage | 36V |
| Sensor | Torque + cadence + speed |
| Display | VLCD5 |
| Bottom bracket fit | Threaded 68-73mm |
| UK status | Road-legal (EAPC), pedal-assist only |
UK road-legal (EAPC)
This electric bike meets UK Electrically Assisted Pedal Cycle (EAPC) requirements: a 250W motor providing pedal-assistance that cuts off at 15.5 mph (25 km/h). It can be ridden on UK roads, cycle paths and bridleways with no licence, registration, road tax or insurance required, by riders aged 14 or over.




Reviews
There are no reviews yet.