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Speed first. Part second. Maker if you already know the name.

Bike, region, drive

16 kits · Folding

add-e

add-e · 25 km/h

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ARCC system

ARCC · 25 km/h

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Bafang BBS01

Bafang · 25 km/h

£799

Bafang rear hub 250

Bafang · 25 km/h

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Gboost

Gboost · 25 km/h

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GeoOrbital Wheel

GeoOrbital · 20 mph

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HillTopper

HillTopper · 20 mph

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L-faster front hub

L-faster · Off-road

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nano crank drive

nano · 25 km/h

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Pendix eDrive 300

Pendix · 25 km/h

€999

Ridekick

Ridekick · 20 mph

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Rubbee

Rubbee · 25 km/h

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Shengyi front hub

Shengyi · 25 km/h

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Swytch Kit

Swytch · 25 km/h

£359

Woosh hub kit

Woosh · 25 km/h

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Zehus Bike+

Zehus · 25 km/h

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add-e

Austrian compact drive at the bottom bracket. It uses the chain you already have. Street class is 250 W.

250 WMid-drive25 km/h

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ARCC

ARCC system

British conversion system sold with a workshop network. Street class is 250 W and 15.5 mph.

250 WRear hub25 km/h

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Bafang

Bafang BBS01

The smaller Bafang cadence mid-drive. Sold in Britain in the 250–350 W hill-climbing class.

250 WMid-drive25 km/h

£799

Bafang

Bafang rear hub 250

Geared rear hub in the 250 W, 25 km/h class. The motor bicycle brands use, sold as a conversion wheel.

250 WRear hub25 km/h

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Gboost

Compact European drive listed at 250 W with packs from about 251 to 441 Wh.

250 WFriction drive25 km/h

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GeoOrbital

GeoOrbital Wheel

A replacement front wheel with motor and battery in the wheel itself.

350 WAll-in-one wheel20 mph

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HillTopper

American friction drive. A roller on the rear tyre, clamped near the seat stay.

750 WFriction drive20 mph

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L-faster

L-faster front hub

Budget front-hub kit sold worldwide. Treat the printed wattage as a seller claim until a manual names continuous power.

Power unstatedFront hubOff-road

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nano

nano crank drive

A small crank-area motor for city bikes that cannot take a full BBS unit.

250 WMid-drive25 km/h

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Pendix

Pendix eDrive 300

German gearless mid-drive on the non-drive crank. 250 W, battery included at about 330 Wh.

250 WMid-drive25 km/h

€999

Ridekick

A push trailer. The motor and wheel live behind the bicycle and hitch to the seat post. Your wheels stay stock.

250 WTrailer20 mph

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Rubbee

Lithuanian friction drive. A powered roller presses the rear tyre. Lift it off and the bike is a bicycle again.

250 WFriction drive25 km/h

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Shengyi

Shengyi front hub

Geared front hub. The motor behind many rebranded 250 W front-wheel kits.

250 WFront hub25 km/h

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Swytch

Swytch Kit

London front-hub conversion. 250 W, assistance to 25 km/h, with a small pack that rides on the handlebar or frame.

250 WFront hub25 km/h

£359

Woosh

Woosh hub kit

British rear-hub conversion in the EAPC class, with workshop fitting available.

250 WRear hub25 km/h

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Zehus

Zehus Bike+

Italian all-in-one rear wheel. Motor, battery and electronics live inside the hub. 250 W, about 173 Wh. No downtube pack.

250 WAll-in-one wheel25 km/h

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