1. Why choose an electric bike kit?

What are the advantages of an electric bike kit?

At Virvolt, we've seen a steady increase in interest in electrification kits in recent years. In 2024, sales of e-bike kits increased by over 30%, a clear indicator that this solution is becoming increasingly popular. But why choose a kit over a complete e-bike?

The main advantage is, of course, the cost. Purchasing an electric conversion kit generally costs two to three times less than buying a new electric bike. For anyone who wants to enjoy the benefits of electric cycling without making a significant investment, it's a wise choice.

Then, thanks to a conversion kit, you can keep your favorite bike. Whether it's a sturdy mountain bike, a high-performance road bike, or a practical city bike, you can convert it into an electric bike by adding a motor and battery. This saves you from having to give up a bike you're attached to.

Modularity is also a major advantage. We offer kits that you can configure according to your needs: more or less powerful motor, battery with greater or lesser range, various types of assistance, etc. This allows you to personalize your conversion to suit your riding style.

Finally, choosing a conversion kit is also an environmentally friendly choice. Transforming an existing bicycle avoids the need to manufacture a new one and reduces waste associated with the rapid replacement of equipment. It's a sustainable solution for improving your mobility.

To learn more, explore our ranges of Electric bike kits.

What is the difference between an electric bike and a conversion kit bike?

The main difference lies in the fact that the electric bike is a complete machine, designed and assembled in a factory. Its battery is integrated into the frame, the motor is designed to work with the components, and the electronics are calibrated for smooth and reliable assistance.

Conversely, a conversion kit is a set of parts that you add to an existing bicycle. This approach offers more flexibility, but requires careful selection of components and meticulous installation to ensure a good user experience.

At Virvolt, electrification kits come with comprehensive after-sales service. Our kits are also guaranteed, but installation must be carried out correctly to avoid malfunctions.

One essential point to know is compatibility : Some frames, brake types, or wheel sizes are not compatible with all kits. That's why we always recommend checking these aspects before buying.

The kit, however, allows you to choose between several types of motors: central, front wheel or rear wheel, as well as different battery capacities, to perfectly suit your use and preferences.

To understand the technical specifications, feel free to read our complete guide on Types of motors for electric bicycles.

1.3 Where to buy a reliable electric motor kit?

To avoid unpleasant surprises, we strongly recommend that you purchase your kit from specialist sellers, and ideally with the support of a professional shop or workshop.

At Virvolt, we have developed a solid network of over 400 partner workshops and stores throughout France. These professionals can not only advise you, but also carry out the installation according to best practices.

Entry-level kits sold on major online platforms often present risks: poorly secured batteries, low-performance motors, insufficient documentation... These elements can compromise your safety and the longevity of your conversion.

Our professional teams will guide you in choosing the kit best suited to your bike and your needs. They will also check frame compatibility and carry out an installation in accordance with current standards.

In addition, these professionals provide after-sales support and maintenance assistance, essential for fully enjoying your electric bike.

2. How does a bicycle electrification kit work?

What are the components of an electric bike kit?

An electrification kit consists of several essential elements:

The electric motor is the heart of the system. It can be located in the hub of the front or rear wheel, or at the bottom bracket (mid-drive motor). The mid-drive motor is often preferred for its efficiency and balance.

The battery is the power source. Its capacity, expressed in watt-hours (Wh), determines your bike's range. For example, a 400 Wh battery offers approximately 70 kilometers depending on the terrain and your riding style.

The electronic controller manages the power delivered to the motor and the assistance level. It receives signals from the pedal sensor, which detects your effort to adjust the assistance naturally.

A screen or dashboard allows you to monitor your speed, battery level, and select the appropriate assistance mode.

Finally, the kit includes cables, sensors and accessories necessary for communication and proper functioning of the system.

How to choose your electric assistance kit according to your needs?

Your choice of kit depends primarily on your type of bike and how you intend to use it.

For urban use, a motor placed in the front or rear wheel is sufficient. It allows the bike to remain light and maneuverable in the city.

If you are a mountain biking enthusiast, opt for a more powerful mid-drive motor, capable of providing significant torque for climbing hills and overcoming obstacles.

The battery should be chosen according to the distance you intend to travel: a minimum of 300 Wh for urban use, and up to 600 Wh or more for long hikes.

The choice of sensor system is also important for your comfort: a cadence sensor activates the assistance as soon as you pedal, while a torque sensor adjusts the power according to your effort.

Why entrust the installation of the kit to professionals?

Installing an electric conversion kit requires both mechanical and electrical skills. Improper installation can compromise safety and reduce your bike's performance.

At Virvolt, we insist that a professional will ensure that the motor is securely fixed, the battery is properly secured, and all cables are correctly connected.

It will also configure the controller to adapt the assistance according to the rider's weight, the type of bike, and the desired power.

Compliance with regulations is also guaranteed, including the speed limit of 25 km/h, an essential rule for driving legally.

For professional installation, find our network of Virvolt installers on our site.

3. How to convert your bicycle into an electric bicycle with a kit?

What steps should be followed to install an electric bike kit?

The conversion begins with the removal of the wheel in question or the crankset. Next, the motor is installed in the hub or in place of the bottom bracket depending on the type of kit chosen. The battery is attached to the frame, often on the downtube or in a luggage rack, for better stability. The controller is placed nearby to facilitate wiring. The pedal sensors and cables are positioned for an accurate reading of the cyclist's movements.

Finally, the control screen is installed on the handlebars, accessible while riding.

Once assembled, a professional calibrates the system and performs a complete test to ensure optimal operation.

What advice can I give to optimize the performance of my electric mountain bike kit?

To get the most out of your e-MTB equipped with a kit, regular maintenance is essential. This starts with the chain, which is under particular stress on an e-bike. It's important to clean it frequently, especially after riding on muddy or dusty terrain, and then lubricate it with a suitable product. A well-maintained chain not only improves motor performance but also reduces premature wear on the drivetrain.

Another crucial point is tire pressure. It directly impacts energy consumption. Underinflated tires increase rolling resistance and drain the battery more quickly. It's therefore important to check the pressure regularly and adjust it to the type of terrain. On paved roads, a higher pressure is preferable, while off-road, a slightly lower pressure will provide better traction.

How you use the assistance also plays a role. It's recommended not to ride constantly in "boost" mode, except on steep inclines or technical sections. Alternating between the different assistance modes, depending on the terrain and your personal effort, helps preserve the battery while avoiding overworking the motor.

Finally, anticipation is key to performance. It's best to downshift before an incline or obstacle to minimize mechanical stress on the motor. Smooth gear changes at the right time ensure a more natural and efficient ride, and extend the lifespan of your entire electric drivetrain.

How to maintain your electric bike kit to ensure it lasts a long time?

A bicycle equipped with an electric kit can last for many years, provided it is well maintained. Cleaning should be done by hand, with lukewarm water, a soft sponge, and a dry cloth. It is important to avoid high-pressure water jets, which could damage the electronic components or force water into the connectors.

Electrical connections should be checked regularly.Dust, humidity, or vibrations can, over time, cause poor connections or oxidation. A simple visual inspection can reveal any signs of wear. If necessary, the connectors can be cleaned with a dry cloth or a suitable contact cleaner spray.

The battery also requires special care. It should be stored in a dry place at room temperature. It is not recommended to leave it completely discharged for extended periods. If it will not be used for a long time, it is best to partially charge it and check its charge level monthly.

Finally, an annual check-up by a professional is strongly recommended. This appointment allows for a complete review of the kit's proper functioning: battery status, wiring, assistance settings, and any necessary system updates. At Virvolt, our network of over 400 partner workshops can assist you with this process. This regular maintenance not only extends the lifespan of your equipment but also guarantees safe operation.

Conclusion

Electrifying your bike with a kit is a simple way to transform your classic two-wheeler into a high-performance electric bike, without having to buy a new one. The process is accessible to everyone: simply choose a kit compatible with your bike, determine the type of motor (mid-drive, front, or rear hub), and select a battery that meets your range requirements. Installation then involves mounting the motor, battery, controller, and sensors, followed by proper calibration. It's best to entrust this step to a professional, as this guarantees safety, efficiency, and compliance with standards. At Virvolt, our network of partner installers supports you every step of the way. Electrifying your bike thus becomes an accessible, personalized, and sustainable solution for modernizing your daily mobility.