Did you know you can own an e-bike without spending an unreasonable amount of money to buy one? E-bikes continue to increase in popularity thanks to the exciting riding experience and convenience. Electric bikes usually allow you to go further faster and they’re a great substitute for driving.
The e-bike market is broad and sometimes demands a significant upfront investment. So, is it worth it? If you’re not sure, the e-bike conversion kit is definitely worth looking in to.
Simply put, e-bike conversion kits provide an electric boost to a traditional bike without the cost of a full e-bike. So, if you’re having trouble finding an e-bike that fits your needs and already have a bike at home that can be converted, you might want to look into an electric bike conversion kit.
So, here is a rundown of the top electric bike conversion kits on the market today.
Best Options At A Glance
Product Summaries
Keenso Electric Bike Conversion Kit
- Brand - Keenso
- Dimensions - 18 x 12 x 10 cm
- Weight - 500 g
- Wattage - 250/350W
- Special Features - Thumb Throttle
Firstly we have a budget option in the Keenso Electric Bike Conversion Kit. It’s currently selling on Amazon for £72/$96.
The Keenso e-bike Kit is an excellent solution for anyone who wants to transform their regular bike into an e-bike. It’s powerful 48V 1000W motor provides solid pedal assistance, making longer rides and challenging terrain more manageable. The LCD meter is a nice touch, letting you easily track your speed, mileage, and gear settings so you always know how your ride is going.
Installation can be a bit of a project, especially if you’re not used to tinkering with bikes. The kit includes everything you need, from brake levers that safely cut off motor power to the controller, which helps keep everything running smoothly. The kit also features impressive heat dissipation, which is crucial for protecting the motor and internal components over long rides.
In terms of cons, the kit can feel a little heavy, which might affect handling, especially for smaller bikes. The thumb throttle and control system takes some getting used to, and it might not be as intuitive for beginners. Also, the package doesn’t include a battery, so you’ll need to purchase that separately, which adds to the overall cost.
The Keenso kit offers a practical, budget-friendly way to upgrade your bike. Once installed, the power and convenience make it a worthwhile investment for daily commutes or leisure rides.
Buy the Keenso Electric Bike Conversion Kit on Amazon for £72/$96:
Bafang Bike Conversion Kit 48V 500W
- Brand - Bafang
- Dimensions - aprx. 70 x 15 x 10 cm
- Weight - aprx. 2 kg
- Wattage - 500W
- Special Features - Customisable Display
Next we have the Bafang Bike Conversion Kit 48V 500W. It’s currently selling on Amazon for £194/$259.
This rear hub motor kit is designed for a wide range of bicycles and supports rear wheel sizes including 20″, 26″, 27.5″, 28″, 29″ and 700C, making it compatible with many commuter, road and mountain bikes. It fits frames with 135–142mm rear dropout spacing and works with disc brake setups.
The 500W motor delivers up to 65Nm of torque, providing strong assistance for commuting, hills and everyday riding. A higher-powered 750W version is also available for riders who want extra performance.
Installation is relatively straightforward thanks to the included components such as the rear hub motor wheel, controller, brake levers, thumb throttle, PAS sensor, wiring harness and mounting hardware. Optional display units are available to show ride data like speed, battery level and assist settings.
If you’re looking for a simple rear hub conversion kit that fits many wheel sizes and bike types, this Bafang system is a reliable option for upgrading a standard bike to electric power.
Buy the Bafang Bike Conversion Kit 48V 500W on Amazon for £194/$259:
YOSE POWER E-bike 36V250W Conversion Kit
- Brand - YOSE
- Dimensions - aprx. 70 x 15 x 10 cm
- Weight - aprx. 2 kg
- Wattage - 250W
- Special Features - 18 Month Warranty
The YOSE POWER E-bike 36V250W Conversion Kit is another great example. It’s currently selling on Amazon for £209/$279.
The YOSE POWER e-bike 36V 250W conversion kit is another fantastic choice. It is a cost-effective solution that lets you enjoy the benefits of electric assistance while keeping your existing bike.
The AKM 250W brushless motor is impressively quiet and durable. You can tackle various terrains on your daily commute or on a weekend adventure. Its user-friendly digital display offers key stats like speed and battery life. This makes monitoring your ride in real time much easier.
Installation is straightforward, thanks to the included video and manual. Most people can set it up in about an hour, though the instructions could be clearer. A common hiccup is fitting the PAS (Pedal Assist Sensor) around the bottom bracket, but swapping in a longer axle usually solves the issue. Some users might need to modify the bike slightly for a snug fit, but nothing too challenging.
One of the highlights is the solid build quality of the components, particularly the brake levers, which cut off the motor efficiently for added safety. However, the kit does not support hydraulic brakes, which limits its compatibility with specific bikes.
The Yose Power kit provides good value for money, with decent performance and the reliability needed for regular use. While the instructions could improve, it remains a top pick for DIY e-bike enthusiasts.
Buy the YOSE POWER E-bike 36V250W Conversion Kit on Amazon for £209/$279:
Bafang 750W Mid Drive E-bike Conversion Kit
- Brand - Bafang
- Dimensions - aprx. 70 x 15 x 10 cm
- Weight - aprx. 2 kg
- Wattage - 750W
- Special Features - Customisable Display
Next we’re going to look at the impressive Bafang 750W Mid Drive E-bike Conversion Kit. It’s currently selling on Amazon for £304/$405.
This mid-drive kit is available in 250W, 750W and 1000W versions, allowing riders to choose a setup that suits their needs or local regulations. The motor delivers strong torque and smooth power output, making it well suited to commuting, hill climbing and general riding.
The upgraded CAN protocol system improves communication between the motor, battery and display for more efficient performance. Dual Hall speed sensors also help provide more accurate power delivery while riding.
Compatibility includes bikes with 68–73mm, 100mm or 120mm bottom brackets that use chain drive systems with disc brakes or V-brakes. It is not suitable for carbon frames or bikes with coaster brakes.
The kit includes key components such as the motor unit, chainring, crank arms, throttle, brake sensors, speed sensor and installation tools, with optional battery and display choices available.
If you’re looking for a powerful mid-drive conversion kit for upgrading an existing bike, the Bafang BBS series is a popular DIY option.
Buy the Bafang 750W Mid Drive E-bike Conversion Kit on Amazon for £304/$405:
YOSE POWER (700c) E-bike Conversion Kit
- Brand - YOSE
- Dimensions - aprx. 70 x 15 x 10 cm
- Weight - aprx. 2 kg
- Wattage - 250W
- Special Features - 18 Month Warranty
Finally we have the YOSE POWER (700c) E-bike Conversion Kit. It’s currently selling on Amazon for £390/$520.
The YOSE POWER (700c) e-bike conversion kit is a solid choice for those looking to turn their standard bike into an electric one without much hassle. It features a 250W brushless motor that is quiet yet powerful enough for everyday commutes or longer trips. One of the standout features is its maximum speed of 25 km/h, offering a stable ride with decent power assistance across five levels.
Installation is straightforward, taking roughly an hour thanks to the comprehensive kit and included video instructions. However, the provided cables may be too long for some setups, requiring extra cable ties for a tidy finish. The kit works well with most city, touring, and commuter bikes but is incompatible with “HOLLOWTECH II” systems and hydraulic brakes, which may limit some users.
Performance-wise, the pedal assist works well on flat surfaces, though there’s a slight lag when tackling inclines, significantly if you slow down too much. However, you can increase the assist speed in the settings, which can help with those steeper climbs. Users have reported excellent battery life, with some covering over 30 miles on a single charge, but opinions on the battery capacity vary slightly.
This impressive kit offers excellent value for money, with simple installation and a reliable motor. However, double-check compatibility before purchasing, and be prepared to make minor adjustments if needed.
Buy the YOSE POWER (700c) E-bike Conversion Kit on Amazon for £390/$520:
Comparison of the Best eBike Conversion Kits
If you’re comparing performance, installation difficulty and compatibility, the table below highlights the key differences between these popular eBike conversion kits.
Keenso Electric Bike Conversion Kit – £
Budget eBike conversion kit with a thumb throttle and LCD display, offering a low-cost way to add electric assistance to a standard bike.
Bafang 48V 500W Conversion Kit – ££
Rear hub motor conversion kit compatible with multiple wheel sizes, providing solid power for commuting and everyday riding.
YOSE POWER 36V 250W Kit – ££
Quiet and efficient 250W brushless motor kit designed for commuters who want a reliable electric upgrade for their existing bike.
Bafang 750W Mid Drive Kit – £££
Powerful mid-drive motor conversion kit delivering strong torque and better hill climbing performance than typical hub motor systems.
YOSE POWER 700c Conversion Kit – £££
A commuter-focused 250W hub motor kit designed for 700c wheels, offering stable pedal assist and long-distance riding capability.
FAQs
The YOSE POWER E-bike 36V250W Conversion Kit is one of overall favourites. It offers a great balance of value for money and easy installation without compromising on power.
If you’re not worried about a complicated install, the Bafang Mid Drive E-bike Conversion Kit is another excellent option. It’s difficult to build this capable mid-drive kit from a reputable brand like Bafang.
You can usually check this on the manufacturer’s website. If you have a specific conversion kit in mind, you should be able to review the list of compatible frames or wheel sizes. All of the kits listed here are highly compatible with bicycles of various shapes and sizes.
No, if installed appropriately following UK/EU rules, these kits are a safe, affordable and relatively eco-friendly way to revive an old bike. We highly advise against tinkering with electrics or batteries yourself as you could void your warranty or worse. These items are subjected to rigorous testing to ensure their safety.
Thanks for reading our article on the best electric bike conversion kit.
If you want to take a look at some ready-to-go ebikes, check out our article on the Best Electric Bikes Under £1000.
Feel free to leave a comment if you have any queries – we’d be happy to help.
