Geared Hub Kits

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We check compatibility before you buy

Email us your bike and wheel size and we'll confirm it'll work before you spend anything. We've been doing this for over 15 years. If it won't fit, we'll tell you honestly and suggest what will.

What makes hub kits great for commuting?

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Simplest Installation of All Our Kits

A geared hub kit replaces your existing rear wheel with a motorised one. With the 85TS kit, there's no need to touch your bottom bracket, chainring, or gears. If you can remove a wheel, you can fit one of these kits — it's the most approachable conversion for someone doing it for the first time.

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Splash-Proof by Design

The motor sits inside the wheel hub — well away from road spray and surface water. Unlike a crank drive motor positioned low at the bottom bracket, a hub motor is much less exposed on wet roads. All our kits are splash-proof; you can ride in heavy rain without concern.

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You Can Ride Home with a Broken Chain

Because a hub motor drives the wheel directly — not through your chain — a snapped chain won't leave you stranded. You can use the throttle or pedal assist to get home safely, even without a functioning chain. A genuinely useful safety net for long commutes.

Available for all common wheel sizes

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20"

Folding bikes & compact frames

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26"

Classic MTB & older hybrid frames

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27.5"

Modern MTB & trail bikes

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700C

Road, gravel & commuter bikes

Not sure which size you need? It will be printed on the sidewall of your existing rear tyre. If you can't find it, email us a photo and we'll confirm before you order.

Installation in 4 steps

🎬 View the animated fitting guide Step-by-step visual walkthrough — opens in this tab →

Remove your existing rear wheel

Release the quick-release or undo the axle nuts. If your bike has a derailleur, shift to the smallest sprocket first to make removal easier.

Fit the motorised wheel

The motor wheel comes pre-laced and is installed in the same way as your original wheel. Ensure the cable exits cleanly toward the frame and route it up to the battery.

Mount the battery on your downtube

The battery cradle fits to your frame's downtube. You may need to drill two M5 rivnuts — a 6.5mm drill bit is all that's required. Email us a downtube photo before ordering so we can confirm the right battery shape for your frame.

Connect cables and fit the display

All connectors are waterproof push-fit. Mount the LCD display and throttle on your handlebars, connect the brake sensors (supplied), and you're ready to ride. Total installation time is typically 1–1.5 hours.

Technical Specifications

Geared Hub Kit — Specifications
Motor type	Rear geared hub motor
Power	250W OEM (EN15194 certified, road legal)
Wheel sizes	20", 26", 27.5" and 700C
Sensor type	Cadence (pedal assist) + throttle
Assist levels	5 levels + throttle
Display	King Meter LCD (backlit, 5 assist levels)
Battery options	Multiple capacities — downtube mount
Battery cells	Samsung or Panasonic (top quality)
Freewheel	Freewheels or cassettes
Brake sensors	Sensored brake levers included
Water resistance	Splash-proof throughout
Kit includes	Motor wheel, battery, charger, display, wiring loom, brake sensors
Installation time	Approx. 1–1.5 hours
Tools required	Basic tools only — no specialist tools
Warranty	Full warranty — refund offered if unrepairable

Frequently asked questions

Will it work on my bike?

Hub kits work on most standard-frame bikes with 20", 26", 27.5" or 700C rear wheels. They are not suitable for bikes with internal hub gears (Shimano Nexus, Sturmey-Archer etc.) or carbon rear triangles. Please email us at kits@wooshbikes.co.uk with a photo of your bike before ordering — we'll confirm compatibility quickly.

Is a hub kit good enough for hills?

On moderate hills, yes — with pedal assist you'll manage most gradients comfortably. On steep hills (10%+), a hub motor can struggle compared to a crank drive, because it can't use your gears to multiply torque. If you live in a very hilly area, we'd recommend considering a crank drive kit like the TSDZ8. Give us a call and describe your typical routes — we'll advise honestly.

Can I keep my existing gears?

Yes Your existing cassette or freewheel, shifters and derailleur remain untouched. If you have an unusual drivetrain setup, let us know before ordering.

Is it really possible to ride home with a broken chain?

Yes — because the motor drives the wheel directly and not through your chain, a snapped chain doesn't disable the motor. You can ghost pedal to power yourself home at up to 15mph, and use gentle pedalling for assist. A genuinely useful feature for long-distance commuters.

Enquire About Hub Kits

Email your bike details — we'll confirm compatibility and advise.

Include your wheel size, bike model or a photo, and any questions. All prices include UK delivery.

✉️ kits@wooshbikes.co.uk

— or call us —

📞 01702 684444

Also Consider

85TS Hub KitTorque sensor