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Electric Bike Conversion Kits

sunstar electric bike kit Electric Bike Conversion KitsIf you’re intending to electrify a favourite bike, an electric bike conversion kit might be the answer for you. Electric bike conversion kits usually include a replacement front wheel fitted with a motorised hub. They are available from a wide range of manufacturers at a wide range of prices, from £300 to well over £1,000. Kits vary in quality a great deal too. The cheapest tend to be unbranded Chinese or Indian products… OK for leisure use, but with limited warranties and back-up, so don’t expect to use this sort of thing for daily commuting! More expensive electric bike kits are usually kit versions of proprietary electric bikes sold by manufacturers such as Izip (sometimes misspelt E zip or Ezip), Currie (sometimes known as the Curry), Heinzmann, Ezee and BionX (the system used by Trek).


  • Some electric conversion kit prices include fitting, others do not.
  • Most electric bike kits are supplied with UK-legal 250w motors, but many use motors of 500w, and a few are rated as high as 1000w. Remember that these powerful high-speed conversion kits are not legal in the UK and the fact that you are riding a machine powered by an electric bike conversion kit will make no difference in the eyes of the law!

Electric Bike Conversion Kits

Make / Model1 Last A-to-B Test Control / Drive Battery Size3 Battery UK Price4 Notes
Electro-Drive (also known as Currie Drive or ElectroPed) April 01 E-Bike / Rear Chain 288Wh La £325
Juicy Bikes PURE - E-Bike / Front Hub 370Wh Li-ion £495 -
Juicy Bikes PAS - Hybrid / Front Hub 370Wh Li-ion £495 -
Alien 36-volt kit - Hybrid / Front Hub 370Wh Li-ion £549 Substantial discount
Smart-Pie Dec 12 E-Bike / Front or Rear Hub 288Wh Li-ion £622 NEW LISTING

Regenerative Braking

Brompton Freedom Ebike - E-Bike / Front Hub 91Wh Li-ion £675 Exchange rates mean price may vary
SRAM Sparc April 02 E-Bike / Rear Hub 120Wh NiMH £600 Widely discounted
Sparticle - E-Bike / Front Hub 240Wh Li-ion £650 -
Nano-Brompton 2 June 07 E-Bike / Front Hub 180Wh Li-ion £675 We tested the original version in 2007.
Smart-Pie Dec 12 E-Bike / Front or Rear Hub 412Wh Li-ion £683 NEW LISTING

Regenerative Braking

Conv-E - E-bike / Front hub 222Wh Li-ion £699 296Wh battery coming soon
Sunstar I-Bike May 08 Pedelec / Crank 80Wh Li-ion £715 Exchange rate fluctuations mean the price may vary
Avocet E-bike - Pedelec/Front hub 260Wh Li-ion £749 -
Nano - E-Bike / Front Hub 380Wh Li-ion £749 -
Viking E-Bike kit - Pedelec / Front Hub 260Wh Li-ion £749 -
Nano-Brompton 2 June 07 E-Bike / Front Hub 360Wh Li-ion £765 We tested the original version in 2007.
Golden Motor 1,000 Watt Magic Pie - E-Bike / Front Hub 576Wh Li-ion £799 Not road legal in UK
Brompton Sparticle Nov 08 E-bike/ Front Hub 260Wh Li-ion £850
Ezee - Hybrid / Front or Rear Hub 370Wh Li-ion £895
BionX PL250 Light - Pedelec / Rear Hub 142Wh Li-ion £1,080
Heinzmann - E-Bike / Front Hub 192Wh Li-ion £1,210 Also rear wheel option
BionX PL250 M - Pedelec / Rear Hub 260Wh Li-ion £1,299
Heinzmann - Pedelec / Front Hub 355Wh Li-ion £1,470 Also rear wheel option
Heinzmann - Pedelec / Front Hub 384Wh Li-ion £1,570 Also rear wheel option
BionX PL250 HT L(high torque) - Pedelec / Rear Hub 355Wh Li-ion £1,600 star Electric Bike Conversion Kits Recommended
BionX PL250 HT RR L(high torque, battery in rear rack) - Pedelec / Rear Hub 355Wh Li-ion £1,700 -
Heinzmann - Pedelec / Front Hub 710Wh Li-ion £2,090 Also rear wheel option

New subscribers can order a ‘get-started’ six-pack of magazine back numbers covering key electric cycles at HALF the usual price! See the subscription page for details.

All back numbers can be ordered by credit card – call 01305 259998 (+44 1305 259998 outside UK)

Electric Bike Conversion Kit Manufacturers or UK Distributors

The comments relate to our own experience with manufacturers or distributors. As a general rule, a company that supplies a good product can afford to be open and helpful with the press, and will give good service and back-up. The others are something of an unknown quantity, but if you think we’ve been unfair, do let us know. For a global list go to Electric Bike Manufacturers Worldwide

Alien Ocean, Synergie, Golden Motor
Newcomer but also selling long-established Synergie brand
AlienOcean European Hub, 1 – 9 Plantation Street, Lochgelly, KY5 9LP
tel: 01592 780528
email: jim@alienocean.co.uk

email: customer.services@zyro.com

Avocet Sports Ltd.
New to the electric bike world
Unit 7-9 Shield Drive, Wardley Industrial Estate, Worsley, MANCHESTER M28 2QB
tel: 0161 727 8508
email: sales@avocetsports.com

Cambridge, Smarta, Sparticle (Brompton)
Quite established and a pleasure to deal with
Electric Transport Shop, Hope Street Yard, Hope Street, CAMBRIDGE CB1 3NA (also in LONDON & OXFORD)
tel/fax: 01223 247410
email: sales@electricbikesales.co.uk

New British Company

email: sales@conv-e.com

New British Company
3 Guest Gardens, Milton Keynes MK13 0AF
tel: 07962 407799
email: john@cyclezee.com

Not always easy to contact
E-go Personal Transport, 52 High Street, MARLBOROUGH, Wiltshire SN8 1HQ
tel: 07974 723996 or 01672 861186 / 512404
email: sales@electro-drive.co.uk

Freedom Ebike
Very nice people, quite new to electric bikes
10/3 HaMelitz Street, JERUSALEM, Israel
tel: (UK) 0871 284 5225
tel: (Israel) +052 500 1309
tel: (Australia) +02 8004 5039
email: andrew@freedomebikes.com

Whatever the official position, Kinetics appears to once again be the de facto UK outlet for Heinzmann
54 Switchback Road, Bearsden, Glasgow G61 1AE, UK
tel: 0141 942 2552
email: mail@kinetics-online.co.u

Juicy Bikes
New, but seem helpful and knowledgeable
Busy All Year, 83 Park Road, BUXTON, Derbyshire SK17 6SM
tel: 01298 214040
email: uksales@JuicyBike.com

Nano & Nano-Brompton
Well established and consumer-friendly
The Electric Wheel Co, Unit 18, Manningford Bohune Estate, PEWSEY, Wiltshire SN9 6NL
tel: 0845 094 2735
email: info@electricwheel.co.uk

Diavelo, Euro-Ebike, Zap
More serious player of late, but hard to pin down
PowerScoots, Unit 5F, Wilmer Business Park, Wilmer Place, Stoke Newington, LONDON, N16 OLW
tel: 020 7254 9225
email: sales@powerscoots.co.uk

Fairly helpful and friendly
March Motorcycle Spares Ltd, 3 Nene Parade, MARCH PE15 8TD
tel: 01354 656150
email: spies@talk21.com

Sunstar I-Bike
Braking Sunstar – UK OFFICE, 89 Warwick Rd, Leek Wootton, Warwickshire, CV35 7QR.
tel: 01926 863 163
email: rob.jone@uk.sunstar.com


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