10 Best Electric Bicycle Conversion Kits 2026 in the United States

The BAFANG 48V1000W Rear Hub Motor conversion kit is a strong option for anyone wanting to turn a 20" or 26" fat tire bike into an electric bike, especially for challenging surfaces like snow or sand. Its powerful 48V 1000W motor delivers high torque (85N.m), allowing you to ride smoothly up to 42 km/h and handle rough terrain effortlessly. With four riding modes—including full electric, pedal assist, boost, and pure pedal—it offers flexibility for different riding styles and conditions.

The kit supports disc brakes and requires a bike with a 175mm rear dropout and cassette-style rear wheel, so it won’t fit all bikes, especially those with V-brakes or freewheel wheels. Battery options are flexible, letting you choose capacity based on how far you need to travel. The battery and display are optional components that can be purchased separately. The optional smart display provides useful information like speed and battery life, making rides more engaging and easier to manage.

Installation requires some bike knowledge, and the kit is sized large, tailored mainly for adult riders with aluminum frames. BAFANG offers reliable customer support, including a one-year replacement and lifetime guidance. For those with a compatible fat tire bike seeking a durable, high-performance kit for outdoor adventures or tough commuting, this kit is a fitting choice. Be sure your bike matches the compatibility requirements before purchasing.

The TONGSHENG TSDZ8 750W Mid-Drive Ebike Conversion Kit offers a powerful upgrade for riders wanting to transform their regular bike into an electric one. Its 750W motor paired with a strong torque of 140 N.m and a 22ah+ controller current provides plenty of power to handle hills, long rides, and various terrains comfortably. The mid-drive design is efficient and tends to be more balanced compared to hub motors, making your ride feel natural and stable. Installation is user-friendly for most standard bikes with bottom bracket sizes of 68mm or 73mm, and the kit comes with adapter rings to ensure a secure fit across road, mountain, folding, hybrid, commuter, or cyclocross bikes.

One of the kit’s highlights is its B02N display, which gives real-time info on speed, battery level, mileage, and error alerts, making it easy to keep track of your ride without guesswork. Another plus is the flexibility to choose your own battery to match your riding style since the kit doesn’t include one, allowing customization for range and weight preferences. On the downside, because the battery is not included, there is an added cost and effort to select and install a compatible battery, which might be a bit challenging for those new to e-bike conversions. Also, weighing about 5 kilograms, the kit adds some noticeable weight to your bike, which could affect handling if you’re used to a very lightweight setup.

The 2-year motor warranty and available technical support offer peace of mind, especially if you’re new to this type of upgrade. This conversion kit represents a solid choice for riders who want a robust and flexible mid-drive electric system and are willing to invest time in installation and picking the right battery.

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.