Best electric bike conversion kits: Power up your ride

The battery from a Swytch kit, one of the best electric bike conversion kits we've tested, fitted to the handlebars of a black hybrid bike
(Image credit: Swytch eBike Conversion Kits)

The best electric bike conversion kits offer a potentially more affordable route to electric biking. While electric bikes can be expensive, if you already have a suitable bike, an electric bike conversion kit could be a good alternative.

There's no denying that the best electric bikes make it easier for riders to explore and experience different terrains and riding environments. Plus they offer a cheaper and greener form of transport to get you from A to B at a higher pace for less effort than a conventional bike, which is especially beneficial for those who are commuting or using them for work. The best electric bikes for commuting can make for a speedier and altogether less sweaty cycle to work, not to mention the money saved when compared to soaring fuel or rail fare prices.

Recent updates

Last updated July 2025

The electric bike conversion kit market is quite dynamic, with brands entering and exiting it regularly, but all the options listed below are from established brands. We've checked the continued availability of these electric bike conversion kits as of July 2025. We've also reformatted the buyer's guide to make it easier to follow.

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Row 0 - Cell 0

Motor position

Power

Battery included

Battery capacity

Cytronex

Front hub

250W

Yes

198Wh

Bafang

Front hub

250W, 500W, 750W

Yes

Up to 840Wh

Zehus

Rear hub

250W

Yes

173Wh

Swytch

Front hub

250W

Yes

90Wh/180Wh

Bafang

Mid-drive

500W

Yes

Varies

Pendix Drive 300

Mid-drive

250W

Yes

330Wh

TongSheng

Mid-drive

500W

Yes

Varies

Gboost

Mid-drive/friction

250W

Yes

251-441Wh

Skarper

Left chainstay

250W

Yes

240Wh

Josh Ross

Josh hails from the Pacific Northwest of the United States but would prefer riding through the desert than the rain. He will happily talk for hours about the minutiae of cycling tech but also has an understanding that most people just want things to work. He is a road cyclist at heart and doesn't care much if those roads are paved, dirt, or digital. Although he rarely races, if you ask him to ride from sunrise to sunset the answer will be yes. Height: 5'9" Weight: 140 lb. Rides: Salsa Warbird, Cannondale CAAD9, Enve Melee, Look 795 Blade RS, Priority Continuum Onyx

With contributions from