The TSDZ2B is the updated successor to the classic TSDZ2, featuring an improved torque sensor, revised internal gearing and better thermal management for quieter, more responsive assistance. This 36V 250W variant is configured for pedal-assist with a 6km/h walk-assist mode only – there is no full hand throttle – so it is road-legal in the UK (EAPC) and can be ridden on public roads and cycle paths with no licence, tax or insurance. The torque-sensing bottom-bracket design reads your pedalling force and scales power naturally, giving a refined ride that feels like a stronger version of yourself. Includes motor, colour display, PAS, brake cut-off levers and loom. Fits standard threaded 68-73mm bottom brackets.

Tongsheng TSDZ2B 250W Mid-Drive Kit (36V) – Road Legal
UK road-legal (EAPC)
£349.00
Price includes 20% VAT.
Next-gen Tongsheng TSDZ2B 250W 36V torque-sensing mid-drive with 6km/h walk-assist. Road-legal in the UK (EAPC).
About this item
- Throttle: 6km/h walk-assist only
- Motor Power: 250W (continuous)
- Motor type: Mid-drive (bottom bracket), torque-sensing
- Rated power: 250W
- Voltage: 36V
- Generation: TSDZ2B (improved sensor)
- Bottom bracket fit: Threaded 68-73mm
In stock — dispatched within 2–3 working days
Free UK delivery on bikes · 30-day returns
| Brand | |
|---|---|
| Throttle | Walk-assist (6 km/h) |
| Motor Power | 250W (continuous) |
| Motor type | Mid-drive (bottom bracket), torque-sensing |
| Rated power | 250W |
| Voltage | 36V |
| Throttle | 6km/h walk-assist only |
| Generation | TSDZ2B (improved sensor) |
| Bottom bracket fit | Threaded 68-73mm |
| UK status | Road-legal (EAPC) |
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.