Finding a specialist shop for conversions in London has become surprisingly difficult recently, as many “mainstream” retailers have shifted toward selling factory-built bikes like Riese & Müller or Tern. However, for a high-quality Tongsheng (TSDZ2B) or mid-drive project, you still have some excellent specialist options.
1. Specialist Conversion Shops in London
- Domex Bikes (Mobile Service): This is likely your most convenient option. They are a fully mobile service that comes to your home in London to perform the conversion. They specifically list mid-drive conversions as a core service and offer a 12-month warranty on parts and labor.
- The Cycle MOT (Walthamstow, E17): Located on Forest Road, they are one of the few physical workshops still actively advertising bespoke e-bike conversions alongside their standard servicing.
- Grove Park Bike Hub (South London): They are a partner for “Boost” conversions but are known for general e-bike expertise. It is worth a call to see if they will install a Tongsheng kit on a customer-supplied frame like your Carrera Fury.
2. High-End Custom Specialists (Home Counties)
- E-MY-BIKE (Stevenage/London border): If you can travel slightly north or use their collection service, they are highly regarded specialists. They focus on high-torque mid-drives (80Nm+) and professional-grade “rivnut” battery mounting, which is much more secure than standard bottle-boss mounting.
Comparison of London Service Options
| Service Provider | Location | Specialization | Best For |
|---|---|---|---|
| Domex Bikes | Mobile (At your door) | Mid-drive & Hub kits | Convenience and home-based install. |
| The Cycle MOT | Walthamstow (E17) | Conversions & Repairs | Traditional workshop experience in East London. |
| E-MY-BIKE | Stevenage / Delivery | High-torque Mid-drives | Heavy-duty, high-performance builds. |
| Woosh Bikes | Southend (Mail Order) | Tongsheng & Bafang | Sourcing the kit (they are the UK TSDZ2 experts). |
💡 Pro Tip for Your Tongsheng Build
Since you are replacing a Bafang BBS01 on your Carrera Fury, the mechanic’s job will be much easier as the “pathway” for the battery and wiring is already there. When you contact these shops, mention that you are specifically looking for a “Tongsheng TSDZ2B transplant.” Some shops prefer Tongsheng over Bafang because the torque sensor setup is often simpler to calibrate for a natural “pedal-assist” feel than the complex programming of a Bafang cadence sensor.
Obsidian Project Update
Conversion Partner Search:
- Primary Contact: Domex Bikes (Mobile) for ease of installation in Pinner.
- Secondary Contact: The Cycle MOT (Walthamstow) if a physical workshop visit is preferred.
- Hardware Note: Ensure the shop is comfortable with the TSDZ2B 4-pin vs 8-pin connector types to match your existing display or battery setup.
Given that you’re in the Pinner/Harrow area, would you prefer the convenience of a mobile mechanic who comes to you, or are you happy to drop the bike off at a workshop in North/East London?