We researched and compared the top electric add-on kits for bikes, evaluating them based on manufacturer specifications, published industry standards, and aggregated owner feedback. Our goal is to help you find the best conversion kit that matches your riding style and budget. Each product was assessed for performance, durability, value, ease of use, and safety. Below are our findings, with honest pros and cons for each option.
| Photo | Product | Score | Buy |
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Bafang BBS02 Mid Drive Motor Kit Best Mid Drive 48V 750W mid-drive motor, fits most bike frames |
9.2 | 🛒 Check Price |
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Voilamart 26 Inch Front Wheel Electric Hub Motor Kit Best Value Hub 48V 1000W front hub motor, 26 inch wheel |
8.7 | 🛒 Check Price |
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Swytch Universal Conversion Kit Most Portable 250W front hub motor, removable battery pack |
8.4 | 🛒 Check Price |
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Ebikeling 700C Rear Wheel Conversion Kit Smooth Ride 48V 500W rear hub motor, 700C wheel |
8.1 | 🛒 Check Price |
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Ride1Up 750W Front Hub Motor Kit Powerful Front Hub 48V 750W front hub motor, 26/27.5/700C options |
7.8 | 🛒 Check Price |
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Cyclone 3000W Mid Drive Kit Extreme Performance 48V 3000W mid-drive motor, chain drive |
7.3 | 🛒 Check Price |
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AW 26 Inch Rear Hub Motor Kit Budget Pick 36V 250W rear hub motor, 26 inch wheel |
7.2 | 🛒 Check Price |
1. Bafang BBS02 Mid Drive Motor Kit: Best Mid Drive
The Bafang BBS02 is a popular mid-drive conversion kit that delivers impressive power and efficiency. In our evaluation, it stood out for its hill-climbing ability and balanced weight distribution. Based on owner feedback, the motor is reliable and the pedal assist system is smooth. However, installation is more involved than hub motor kits, and the added torque can accelerate chain wear. This kit is best for riders who want a natural riding feel and are comfortable with some mechanical work.
One real weakness is the complexity of installation and tuning. If you are not handy with tools or prefer a plug-and-play solution, this may not be for you. Also, the price is higher than some hub motor kits, but the performance justifies the cost for serious cyclists.
- Powerful 750W motor provides excellent hill climbing and acceleration.
- Mid-drive design keeps weight low and balanced.
- Comprehensive kit includes display, throttle, and pedal assist sensor.
Pros: Superior torque and efficiency on hills.; Well-established brand with strong community support.
Cons: Installation requires mechanical aptitude and some tools.; May strain chain and drivetrain over time.
2. Voilamart 26 Inch Front Wheel Electric Hub Motor Kit: Best Value Hub
The Voilamart 26 inch front hub kit offers excellent value for riders seeking a simple electric add on. We compared its specifications and found the 1000W motor provides ample power for commuting and recreational riding. Owner feedback highlights the ease of installation, as the wheel comes pre-laced. However, front hub motors can reduce steering precision and traction, especially on gravel. This kit is ideal for budget-conscious riders who want a quick conversion without major modifications.
A real limitation is that the battery is not included, which adds to the total cost and requires separate research. Additionally, the front wheel placement may not suit off-road or aggressive riding. If you ride mostly on pavement and want a cost-effective solution, this is a solid choice.
- High-power 1000W motor for strong acceleration.
- Pre-built wheel makes installation straightforward.
- Includes throttle, controller, and brake levers.
Pros: Affordable and easy to install.; Good power for flat terrain and moderate hills.
Cons: Front hub can cause traction issues on loose surfaces.; Battery not included, must be purchased separately.
3. Swytch Universal Conversion Kit: Most Portable
The Swytch kit is designed for convenience and portability. In our research, it stands out for its easy installation and removable battery that can be carried like a water bottle. Based on user reviews, it is perfect for short commutes and flat terrain. However, the 250W motor is less powerful than many competitors, making it unsuitable for steep hills or heavy riders. This kit is best for urban cyclists who want a lightweight assist without permanent modifications.
One weakness is the limited range and power. If you need to tackle long distances or steep inclines, this kit may disappoint. Also, the battery capacity is lower than larger kits, so frequent charging may be required. Skip this if you are a performance-oriented rider.
- Ultra-lightweight and portable design.
- Battery mounts on handlebars, easy to remove and carry.
- Simple installation, no special tools required.
Pros: Extremely easy to install and remove.; Great for riders who need a portable boost.
Cons: Lower power (250W) limits hill climbing ability.; Battery range is modest, around 15-20 miles.
4. Ebikeling 700C Rear Wheel Conversion Kit: Smooth Ride
The Ebikeling 700C rear conversion kit is a reliable option for riders who prefer rear wheel drive. We evaluated its specifications and found the 500W motor provides a smooth, quiet ride. Owner feedback often praises the pedal assist system and LCD display. However, installation may require some adjustments, especially if your bike has disc brakes. The battery is not included, and mounting it can be awkward. This kit is suitable for riders who want a balanced conversion with good performance.
A real drawback is the complexity of installation for certain bike configurations. If you have a bike with internal gears or unusual dropout spacing, compatibility may be an issue. Also, the lack of included battery adds cost. Consider this if you are comfortable with custom setups.
- Rear hub motor provides good traction and balanced feel.
- 500W motor offers a good balance of power and efficiency.
- Includes LCD display and pedal assist options.
Pros: Smooth and quiet operation.; Good for commuting on mixed terrain.
Cons: Installation can be tricky with disc brakes.; Battery mounting options are limited.
5. Ride1Up 750W Front Hub Motor Kit: Powerful Front Hub
The Ride1Up 750W front hub kit offers substantial power at a competitive price. In our comparison, it delivers strong acceleration and is available for various wheel sizes. However, based on owner feedback, some users experienced controller failures after a few months. The front hub design also reduces steering precision on loose surfaces. This kit may appeal to riders who want maximum power for flat roads but are willing to accept some reliability risks.
One significant weakness is the durability of the controller. If you plan to ride in wet conditions or push the motor hard, you may encounter issues. Also, the front wheel can feel light and skittish. We recommend this only for riders on a tight budget who prioritize power over longevity.
- Strong 750W motor for aggressive acceleration.
- Works with multiple wheel sizes.
- Includes twist throttle and LED display.
Pros: High power for the price.; Adaptable wheel size compatibility.
Cons: Front hub can cause wheel spin on loose terrain.; Reported reliability issues with controller.
6. Cyclone 3000W Mid Drive Kit: Extreme Performance
The Cyclone 3000W kit is for enthusiasts who demand extreme performance. We researched its specifications and it delivers jaw-dropping power, but at the cost of reliability and ease of use. Owner feedback frequently mentions chain alignment issues and motor overheating. The installation is highly technical, requiring fabrication skills. This kit is not for beginners or casual riders. It is best suited for experienced builders who want a high-speed project bike.
A major weakness is the poor durability and lack of support. Many users report component failures within weeks. Also, the kit is not street legal in most areas. Skip this unless you are a tinkerer with a high tolerance for maintenance and a need for speed.
- Extremely high power for off-road and speed.
- Chain drive system allows gear multiplication.
- Includes controller and throttle, but no battery.
Pros: Unmatched power for steep hills and high speed.; Customizable gearing options.
Cons: Very complex installation and tuning.; Low durability; parts may wear quickly.
7. AW 26 Inch Rear Hub Motor Kit: Budget Pick
The AW 26 inch rear hub kit is the most budget-friendly option we evaluated. Based on spec sheets and owner feedback, it provides a gentle assist for flat terrain. The 250W motor is adequate for light use, but hills will quickly sap its power. Installation is straightforward, though the included instructions are minimal. This kit is ideal for someone who wants to experiment with electric conversion without a large investment.
One real limitation is the low power and build quality. The motor may overheat on long climbs, and the controller is basic. If you need a reliable daily commuter or live in a hilly area, look elsewhere. This is best for flat, short trips and a tight budget.
- Low-cost entry into e-bike conversion.
- Simple installation with basic tools.
- Includes throttle and controller.
Pros: Very affordable.; Good for flat, short commutes.
Cons: Low power struggles on hills.; Basic components may lack reliability.
Frequently Asked Questions
What is the best electric add on for a bike?
The best electric add on depends on your needs. For most riders, the Bafang BBS02 mid-drive kit offers the best balance of power, reliability, and natural feel. If you prefer a simple hub motor kit, the Voilamart 26 inch front wheel kit provides great value.
Can I install an electric add on on any bike?
Most kits are designed to fit standard bike frames, but compatibility varies. Mid-drive kits require a bottom bracket with specific dimensions. Hub motor kits need proper dropout width and wheel size. Always check the manufacturer’s specifications before purchasing.
Do I need a battery with the conversion kit?
Many kits do not include a battery. You will need to purchase a compatible battery separately. Consider the voltage, capacity, and mounting options when picking a battery. Some kits, like the Swytch, include a battery.
How fast can an electric add on go?
Speed depends on motor power, battery voltage, and local laws. Most 250W kits assist up to 15-20 mph, while 750W kits can reach 25-30 mph. Higher power kits like the Cyclone 3000W can exceed 40 mph but may not be street legal.
Is it legal to use an electric add on on public roads?
Laws vary by country and state. In many places, e-bikes with motors under 750W and a top speed of 20 mph are classified as bicycles. Higher power kits may be considered motor vehicles. Always check local regulations before riding.
Our Verdict
After researching and comparing the top electric add on kits, we recommend the Bafang BBS02 as the best overall for its performance, durability, and natural riding feel. For a budget-friendly hub motor option, the Voilamart 26 inch front wheel kit is a strong runner up. Choose based on your mechanical skill and riding needs.
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