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Conversion Kits

Keep the bike you love — just add a motor. Powerful, reliable, road legal, and supported right here in the UK.

All Kits Crank Drive Geared Hub Kit Finder

Crank Drive Kits

3 motors available
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Most Popular
Crank Drive Kits

The motor fits where your pedals attach, giving smooth, natural assistance — especially powerful on hills and longer rides. All motors are 250W, street legal, OEM spec.

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BAFANG BBS01B
Cadence sensor + throttle · 36V & 48V
  • 36V — smooth standard torque
  • 48V — higher torque for hills
  • Cadence sensor for natural pedal assist
  • Throttle control for direct power
  • 250W OEM, street legal
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TSDZ2B
Torque sensor + throttle · 48V
  • 48V for strong hill climbing
  • Torque sensor — control power with your pedals
  • Throttle for additional control
  • High efficiency and extended range
  • 250W OEM, street legal
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⭐ Best Seller
TSDZ8
Advanced torque sensor · 48V
  • Our best-selling kit two years running
  • 48V top-tier electric assistance
  • Advanced torque sensing for smooth power
  • High efficiency and long battery life
  • 250W OEM, street legal
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Geared Hub Kits

2 kits available
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Easiest to Fit
Geared Hub Kits

A compact motor sits inside your wheel hub — quiet, reliable, and low maintenance. Doesn't touch your gears or chain. All motors are 250W, street legal, OEM spec.

Standard Hub Kits
Fits 20", 26", 27.5" & 700C wheels
  • Compatible with most wheel sizes
  • Various battery options for different ranges
  • Internal gearing for smooth, reliable power
  • Water-resistant and low maintenance
  • 250W OEM, street legal
🎬 View the animated fitting guide Step-by-step visual walkthrough — opens in this tab View full details →
85TS Hub Kits
Compact design · High torque
  • Compact 85mm motor — very discreet
  • High torque for hills and stop-start riding
  • Easy installation on most standard bikes
  • Reliable for daily year-round commuting
  • 250W OEM, street legal
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Kit Finder

Find the right kit for your bike
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Kit Finder

Which kit fits your bike?

Use our tool to check compatibility — or simply give us a call and we'll check for you. We always verify compatibility before you buy, so there are no nasty surprises.

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Keep Your Bike
Love your current bike? Convert it instead of replacing it. Our kits work with most standard frames.
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Expert Guidance
Our team checks compatibility for your specific bike before you buy — no guesswork, no returns.
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Full UK Support
Lifetime technical support from our Southend team. We're here long after the sale.

Not sure which kit? Just ring us.

We've been fitting conversion kits for over 15 years. Tell us about your bike and we'll recommend exactly the right kit — no jargon, no pressure.

📞 01702 684444