Our conversion kits, turning your regular bike into an electric one...

Turn your bike into an e-bike, depending on how you use it

Do you love your bike and want to switch to electric without buying a new one? At Electro Bike Zone, we offer complete conversion kits to turn your regular bike into a reliable, high-performance, and durable electric bike.

We currently offer two main solutions:

  • Bafang mid-drive motor kit: powerful, high-torque, ideal for hills, heavy loads, and demanding conditions.
  • 250W Rear Wheel Motor Kit: Lightweight, discreet, easy to install, perfect for city riding and leisurely rides.

Why choose a conversion kit?

  • You’re keeping a bike you’re already familiar with
  • You avoid having to buy a whole new bike
  • You get a scalable and maintainable solution
  • You choose the configuration that best suits your needs
  • You’ll receive our expert advice, after-sales service, and in-house assembly
Two technologies, two uses

Bafang Drive Motor Kit

The mid-drive motor is the best option for those looking for torque, natural assistance, and effective performance on climbs.

Ideal for:

  • daily runs with elevation gain
  • Mountain bike
  • hiking
  • utility bike / trailer / cargo
  • users who want the maximum available power based on their chosen configuration

Its advantages:

  • high-torque engine
  • excellent performance on inclines
  • dynamic support
  • a wide range of customization options
  • the ideal solution for heavy-duty use

250W Rear Wheel Motor Kit

The 250W rear-wheel motor kit is a compact, lightweight, and discreet solution, ideal for converting a city bike, touring bike, or recreational bike to electric power.

The product currently available includes a 250W rear-wheel motor (280 RPM), a 36V 10Ah Mini Bottle battery, an LCD screen, and a controller built into the battery, which simplifies installation.

Ideal for:

  • urban travel
  • daily routes with minimal elevation gain
  • walks
  • cyclists looking for a lightweight and unobtrusive solution
  • simple and clean conversion projects

Its advantages:

  • smooth and quiet operation
  • up to 40 Nm of torque (as advertised)
  • Total weight of approximately 4.2 kg with a 360Wh battery
  • Compatible with 26- to 28-inch wheels
  • Compatible with 8- to 10-speed cassettes
  • compatible with 135 mm rear wheelbase
  • Compatible with disc brakes or brake pads
  • typical range of 20 to 60 km
  • version fully compliant with the legal 250W conversion for use on Swiss roads, as specified in the product sheet
Which kit should you choose:

Choose the Bafang mid-drive motor if:

  • you often ride uphill
  • you are carrying a heavy load
  • Are you looking for more couples?
  • You want the most effective solution

Choose the 250W rear-wheel motor if:

  • Do you mainly drive in the city or on moderate terrain?
  • Are you looking for a lightweight, low-profile bike?
  • Do you want a simpler installation?
  • you prefer gentle, natural support for everyday life
IsIs my bike compatible with the bottom bracket motor?

99% of bikes are compatible, however, some measurements need to be taken before purchasing. Depending on your bottom bracket, we have adapters available.
Take the measurements by following the table below:

Bottom bracket type:Bottom bracket width:Accessories to buy:
BSA standard68-73mmNone
Hollowtech68-73mmNone
Press-fit86-92mmLekkie adapter
PF3068-73 / int. 46mmLekkie PF30
Is my bike compatible with the rear-wheel motor?

Most bikes are compatible with our rear-wheel motor kit. However, there are a few things you should check before making a purchase: rear wheelbase, wheel size, cassette type, and available space for the battery.

Good news: all our wheels are compatible with both disc brakes and rim brakes, ensuring seamless integration with your bike.

Coming soon: We will soon be offering a version with a 12 mm thru-axle, compatible with 142 mm and 148 mm standards, ideal for modern bikes (mountain bikes, gravel bikes, etc.).

There are two types of rear wheel mounts:

  • Quick release: standard 135 mm width, widely used on city bikes and older mountain bikes.
  • 12 mm thru-axle: a modern, stiffer, and safer standard, used on newer bikes (mountain bikes, gravel bikes, disc-brake road bikes).

Les axes traversants offrent une meilleure rigidité et un maintien plus sûr de la roue, notamment avec les freins à disque :contentReference[oaicite:1]{index=1}.

Coming soon: We will soon be offering a hub compatible with 12 mm thru-axles in 142 mm and 148 mm sizes, designed for modern bicycles.

Element Information
Bottom bracket Our upcoming motor for 12 mm thru-axles / 142–148 mm will be equipped with a torque sensor integrated into the crankset.
Pedaling sensor Therefore, there will be no need to add an external cadence sensor to the bottom bracket.
Advantage This solution allows for a cleaner installation, simplified assembly, and more natural pedaling assistance.
Compatibility This future system will be designed for modern bicycles equipped with a 12 mm rear thru-axle with a 142 mm or 148 mm spacing.
Which pedal motor should I choose?

The power of the kits and the battery capacities depend on the use. You must also take into account the technical possibilities with your bike. Discover below some recommendations and the main different power levels.

The 500w motor is the best seller in Switzerland because it provides all the necessary power while remaining within the legal framework.

The 750W and 1000w motors are only intended for use on private property and are prohibited on public roads and paths.

PowerMax torqueMain use
250W Kit80NmOn flat ground for rides without elevation changes
350W Kit90NmIdeal for flat, leisurely rides
500W Kit110NmSuitable for daily use and leisurely rides, capable of hauling loads on any terrain
750W Kit130NmVery powerful motor for rides such as mountain biking
1000W Kit160NmPowerful motor for hauling heavy loads 
Which battery to choose?

Before choosing a kit, it is essential to check if installing the battery on your frame is technically feasible. In 99% of cases, we have suitable solutions, but three elements must be taken into account: technical feasibility, the capacity required according to your needs, and aesthetics.

We always ensure that the battery integration alters the design of your bike as little as possible.

If in doubt, do not hesitate to contact us. We will advise you in order to choose the best option for your bike.

All our batteries are delivered equipped with Samsung cells and a high-performance, quality BMS.

Lightweight battery weighing just 2 kg, but note that it’s 36V/10Ah, which means it has a limited range but is sufficient for the rear-wheel motor

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Battery to be installed on the bottle cage screws, the most suitable battery for all bikes that have the space for integration. By clicking on the photo, you will see the dimensions of the battery.

Classic frame battery to be installed on the bottle cage mount of your bike.

Rack battery, this battery can be installed on any bike with fixings in the frame for installing a rack. This battery is only recommended in the case of bikes that are not compatible with the bottle cage battery, because the center of gravity is off-center and may present discomfort, especially if you still want to put panniers or a basket on it. Also note that not all panniers are compatible with this model.

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Saddlebag battery, this battery can be installed on all bikes on the market. It is mainly recommended in cases where other battery models do not work on your frame. It is custom-made according to the customer's wishes and the technical possibilities of the bike.

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Order our best-selling 500W kit or the wheel motor, or click below to explore all the options

All our complete kits
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit

500W - Complete Bafang electric kit

CHF: ,090.00
Details on the product page
250W Rear Wheel Motor Kit
250W Rear Wheel Motor Kit

250W Rear Wheel Motor Kit 4.1

CHF: ,090.00
Details on the product page

Best-selling accessories for your kit, you can find more by clicking here

Discover our range of kits below:

250W Rear Wheel Motor Kit
250W Rear Wheel Motor Kit
250W Rear Wheel Motor Kit 4.1
CHF: ,090.00
See details
Complete Bafang 350W electric kit with mid-drive motor, battery, LCD display, and professional installation for a high-performance e-bike
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
250w - Complete Bafang electric kit
Complete Bafang 350W electric kit with mid-drive motor, battery, LCD display, and professional installation for a high-performance e-bike
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
350W - Complete Bafang electric kit
250w - Complete Bafang electric kit
350W - Complete Bafang electric kit
CHF: .00
See details
750W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
750W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
500W - Complete Bafang electric kit
CHF: ,090.00
See details
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
750W - Complete Bafang electric kit
CHF: ,090.00
See details
750W - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
750W - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
1000w - Complete Bafang electric kit
CHF: ,390.00
See details