
Electric bikes are a great way to commute, run errands, and explore different terrains. However, they can be expensive. A more affordable option is to convert your existing bicycle into an electric bike using a conversion kit. There are thousands of conversion kits available on the market, but it's important to choose one that is legal, compliant with the laws in your region, and safe. In this article, we will discuss the factors to consider when choosing a conversion kit and provide step-by-step instructions on how to convert your cycle to electric.
| Characteristics | Values |
|---|---|
| Cost | Much cheaper than purchasing a new e-bike |
| Compatibility | Kits are compatible with almost any bike |
| Installation | Easy to install, but requires some mechanical knowledge |
| Weight | Kits are lightweight, but can make the bike feel "flexy" |
| Performance | Extends the range of the bike, improves speed and reduces rider effort |
| Battery | Removable, rechargeable, and compact |
| Motor | Hub motors can be prone to loss of traction |
| Legal Compliance | Legality varies by territory; some kits may not be compliant with local laws |
| Safety | Added weight and speed may require upgraded brakes |
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What You'll Learn

Compatibility: Check your bike model and territory laws
Compatibility is a key consideration when converting your cycle to electric. There are thousands of electric bike conversion kits on the market, but not all are created equal in terms of legality, safety, and compatibility with your bike model.
Firstly, it is important to check the condition and componentry of your bike. Converting to electric will dramatically increase the torque, so a low-quality or worn drivetrain may result in poor performance and even damage, such as a skipping or snapping chain. It is recommended to choose a bike with disc brakes, as these will be better able to handle the increased momentum of an electric bike.
Secondly, you should research the territory laws that apply to your location. Electric bike laws vary across the world, and non-compliance can result in fines or other penalties. For example, in the UK, e-bikes are limited to a power output of 250 watts and a maximum speed of 15.5 mph. In British Columbia, e-bikes are defined as "motor-assisted cycles" and must adhere to specific regulations, such as having fully operable pedals and safety features that stop the motor under certain conditions. In India, electric vehicles with a power output below 250 watts and a speed less than 25 km/h do not require certification, while more powerful vehicles must undergo a full testing process.
To ensure compatibility and legality, it is recommended to use a reputable conversion kit brand that offers support and complies with the laws in your territory. For example, the Swytch Kit is a popular and lightweight option that includes everything you need for an electric bike conversion, and it is legal for use in the US and UK/EU. The TongSheng mid-drive system is another option that offers compatibility with a wide range of bike designs, although it does not come with a battery.
Before purchasing a conversion kit, utilize the resources provided by manufacturers, such as the compatibility checker offered by Swytch, to double-check that the kit is suitable for your specific bike model and complies with the territory laws that apply to you.
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Cost: Conversion kits are cheaper than e-bikes
Electric bike conversion kits are a more affordable option than buying a new e-bike. Conversion kits are available at a fraction of the cost of a new electric bike, making them a cost-effective solution for those on a budget. With thousands of options available on the market, there is a wide range of prices and features to choose from.
The Swytch eBike Conversion Kit, for example, offers a simple, lightweight, and low-cost solution. The kit includes everything needed for the conversion, such as a battery, charger, pedal sensor, and motor wheel. The installation process is straightforward and can be completed in under an hour, making it a convenient option for those with basic mechanical skills.
Another affordable option is the Voliamart rear wheel kit, which provides ample power and adjustability with five power options. However, this kit requires mechanical competence for installation and may need additional purchases, such as a battery, which can be a significant added expense.
Conversion kits are particularly advantageous for those who already own a bicycle. By converting an existing bike, individuals can save money and continue enjoying the ride quality of their beloved bicycle while experiencing the benefits of electric assistance. This option is also more sustainable, reducing the need to purchase a new product when a functional bike is already available.
While conversion kits are generally more affordable, it is important to consider the potential drawbacks. The process may require mechanical expertise, and additional costs, such as battery purchases, can increase the overall expense. Furthermore, the conversion may invalidate existing guarantees on the base bike, and the final product may not have the same seamless integration and performance as a purpose-built e-bike. Nonetheless, for those seeking a cost-effective way to electrify their ride, conversion kits offer a compelling and popular choice.
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Installation: Some kits are easy to install, others require mechanical skills
The ease of installing an electric bike conversion kit depends on the kit and the bike you have. Some kits are designed to be easy to install, like the Swytch Bike Air, which simply requires you to swap out your front wheel, wire up the controller and battery, and you're ready to go. The Swytch kit is also lightweight and compact, allowing for easy removal and carrying.
Other kits may require more mechanical skills and knowledge about bikes. For example, the Bafang mid-drive conversion kit requires removing the bottom bracket and fitting the drive to the front of the down tube. Hub motor conversion kits can be installed on the front or rear wheel, but rear installation is usually required for more powerful motors. The Bafang kit also requires purchasing a separate battery pack, which can be confusing due to the various styles, cell manufacturers, voltages, and amp-hour ratings available. It is important to select a battery pack that falls within the motor's specified voltage range.
Some kits may require additional tools for installation, such as tyre levers, a pump, and a freewheel remover tool. The installation process may involve removing the tyre and tube from the current front wheel and installing them on the new wheel from the kit, ensuring the tyre is mounted correctly. It is also important to check that the brakes are correctly adjusted for the new wheel and that any straps or brackets are securely attached to prevent rotation.
While some users have found the conversion process easy, especially with step-by-step guides, others with more complex kits have noted that it can be stressful, time-consuming, and require mechanical competence. It is important to follow the directions provided with the kit carefully, as there are many types of electric bike kits and bike designs, and some steps may vary.
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Performance: Consider the range, weight, and quality of the kit
Performance-wise, there are several factors to consider when choosing an electric bike conversion kit. Firstly, the range of the kit refers to how far you can go using electric power. Different kits offer different ranges, so it's important to choose one that suits your needs. For example, the Rubbee base model offers a range of 16km, while the Swytch Kit offers a range of 45-60 miles with its GO++ upgrade version.
Weight is another important consideration. Heavier kits can put more strain on the brakes and affect the overall performance of the bike. Lighter kits, such as the Rubbee, which weighs only 2.8kg, can provide a more efficient and smooth ride. It's also worth noting that some kits allow you to remove the battery when not in use, reducing the overall weight of the bike when riding without electric assistance.
The quality of the kit is also crucial. While electric bike conversion kits are generally much cheaper than purchasing a new e-bike, it's important to choose a reputable brand that offers good quality components and customer support. The compatibility of the kit with your specific bike model is another important factor, as not all kits will fit all bikes. It's also essential to consider the condition of your old bike, as adding an electric motor can put more strain on the drivetrain and brakes, affecting performance if they are not in good condition.
In terms of specific recommendations, the Swytch Kit is a popular option known for its simplicity, low weight, and low cost. It is compatible with most bikes and offers a range of power pack options to suit different needs. The Bafang kit is another well-known option, offering a mid-drive conversion kit that provides a powerful and high-quality setup. However, it may be more complex to install and is only compatible with specific bottom bracket sizes.
Overall, when considering the range, weight, and quality of an electric bike conversion kit, it's important to do your research and choose a reputable brand that suits your specific needs and bike model. Regular maintenance and inspection of the electrical connections and components are also crucial to ensure optimal performance and prolong the life of your kit.
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Maintenance: Research how to service your kit
Maintaining your electric bike is important to ensure that it stays in good condition and to prevent any potential issues. Here are some tips on how to service your kit:
Battery Maintenance
The battery is one of the most important components of your electric bike, and proper maintenance can help extend its life. Here are some tips for maintaining your battery:
- Store your battery at the right temperature: Extremes of heat and cold can affect the battery's performance. If you're storing your electric bike in a cold place, take the battery indoors and charge it at room temperature.
- Charge your battery regularly: It is recommended to recharge your battery after each ride and unplug it once it's fully charged. Avoid letting the battery drop below 20% before recharging.
- Store it partially charged: If you're not going to use your electric bike for an extended period, it's best to store it with a partial charge. Storing a battery at 100% charge can negatively impact its longevity. Aim for a charge between 40% and 80%.
- Keep the battery clean and dry: When cleaning your electric bike, remove the battery and wipe down the battery case and tray with a damp cloth. Ensure everything is completely dry before reassembling.
Motor Maintenance
Electric bike motors are typically designed to be maintenance-free and are usually housed in a self-contained unit. However, you can help maintain your motor by keeping the motor housing clean and inspecting it for any signs of wear and tear. If any issues arise, it's best to consult a trained technician.
Chain Maintenance
The chain is a vital component of your electric bike's drivetrain system and requires regular maintenance:
- Clean and lubricate your chain: Remove old oil and dirt with a rag, then apply fresh lube sparingly. Wipe off any excess lube to prevent attracting grit and grime.
- Use a chain wear indicator tool: This tool will help you monitor the condition of your chain and alert you when it's time for a replacement.
Brake Maintenance
It is important to monitor the wear on your brake pads and ensure they are in good working condition:
- Regularly inspect your brake pads for any signs of wear and tear.
- Adjust and maintain your brakes as needed: Keep them properly aligned and functioning smoothly.
General Maintenance
In addition to the specific components mentioned above, there are some general maintenance tips to keep in mind:
- Regular servicing: Depending on your usage, most e-bikes require servicing every 6 to 12 months. Even if you don't ride frequently, get your bike serviced before riding it if it has been stored for a long period.
- Monitor for unusual noises: E-bikes produce some noise, but if you hear rattles, squeaks, or unusual sounds, it may indicate a potential issue.
- Keep your bike clean and lubricated: Basic maintenance, such as regular cleaning and lubrication, can help extend the time between tune-ups.
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Frequently asked questions
There are several electric bike conversion kits available in the market. These include the Swytch Kit, Voliamart rear wheel kit, Rubbee, TongSheng, Bafang, and Vivax Assist. The Swytch Kit is one of the most popular kits and is compatible with almost all bicycles. It comes with a battery, charger, pedal sensor, motor wheel, etc. To install the kit, you need to swap out your front wheel, wire up the controller and battery, and you're good to go.
Converting your cycle to electric can make your rides faster, less sweaty, and more fun. It can also help you explore and experience different terrains and riding environments. Additionally, electric bikes are a cheaper and greener mode of transport.
Electric bike conversion kits can be expensive and may not always provide the best performance. The market is filled with cheap, low-quality kits that have poor quality control. These kits may not be serviced by local bike shops, and the positioning of the battery may not be optimal.









































