10 Best Electric Bicycle Conversion Kits 2025 in the United States

The LIVALL PikaBoost 2 is a rear wheel electric bike conversion kit designed for road bikes that feature round seatposts between 25-35mm. It uses a hub motor with motor power suited for casual to moderate riding, supported by a 220Wh battery offering a respectable range of up to 70 km (43 miles) under ideal conditions. This battery capacity is good for shorter commutes or recreational rides rather than long-distance travel. The kit includes a battery management system (BMS) ensuring safety and longevity, along with smart features like an app for easy installation, calibration, and mode switching. The app also allows remote troubleshooting and group ride functions, adding a modern touch to the riding experience. Charging options are flexible with both direct and removable battery charging; the system supports fast charging and even functions as a power bank for other devices.

Installation is user-friendly without extra wires and allows quick switching between electric and manual modes. However, this kit is compatible only with certain bike types—specifically not suitable for children’s bikes—and requires a 65W USB-C charger (not included). The ride quality benefits from a durable V-shape tire and safety features like automatic motor shutoff if tipping is detected to reduce accidents. The kit is lightweight and portable with a solid aluminum alloy frame for durability. A limitation is its single-speed setup, which might not suit riders needing multiple gears for varied terrain.

The included display and controller are integrated via the app rather than traditional hardware screens, which might be less intuitive for some. In summary, the LIVALL PikaBoost 2 presents a smart, safe, and convenient option for adults wanting to upgrade a compatible road bike to electric, particularly if preferring app-based control and a tidy installation. It is ideal for daily urban rides and moderate distance trips but may fall short for more demanding or off-road cycling needs.

The EBIKELING Waterproof Ebike Conversion Kit is designed to easily convert a regular bike into an electric bike. It features a powerful 1200W or 1500W direct drive motor integrated into an aluminum double-walled rim, providing durability and reliable power for adult riders. The kit includes a 48V 20AH rear rack battery that balances range and weight effectively, and its waterproof design allows for riding in various weather conditions. A programmable colorful LCD display shows important information like battery level, speed, trip distance, and pedal assist levels, helping riders monitor their ride and troubleshoot if needed.

This kit comes complete with all necessary parts such as the motorized wheel, controller, throttle, brake levers, pedal assist sensor, torque arm, and cables, making installation straightforward for those familiar with basic bike maintenance. Note that the tire is not included, so you will need to transfer your current tire or purchase one separately. The hub motor and battery come with a 1-year warranty, while other components have a 3-month warranty, which may be important to consider for long-term reliability. This kit suits adult riders looking to upgrade their existing bicycles with a strong motor and dependable battery, especially for use in different weather conditions. It may not be ideal for those seeking a lightweight setup or those unfamiliar with bike assembly, as installation requires some hands-on work.

The Bafang Mid Drive Kit (models BBS02B and BBS-HD) is a versatile electric bike conversion kit compatible with bottom brackets between 68-73mm and suitable for various bike types including mountain bikes, city bikes, and recumbent trikes. It offers motor power options of 500W, 750W, and 1000W, powered by a 48V or 52V system, delivering strong torque ranging from 100 to 160 Nm. This allows the bike to tackle hills and different terrains with speeds up to 45 km/h.

The kit includes most necessary components such as brake levers, chainwheels, throttle, speed sensor, and installation tools. However, the battery and LCD display are optional and must be purchased separately, which is important to consider for those seeking a complete setup immediately. Installation is designed to be beginner-friendly, supported by manuals, online videos, and US-based customer support to assist if needed.

There are some limitations, including the requirement for specific bottom bracket sizes and compatibility only with bikes that have disc or V-brakes and chain drives, so it may not fit all bicycles. Additionally, 73mm screws are not included, which may entail extra cost or effort. For users comfortable with some DIY assembly, this Bafang kit provides powerful and customizable performance along with reliable support, provided the bike’s compatibility and battery purchase are carefully planned.