Quick Take
When you're shopping for ebike motors, controllers, and displays, you'll quickly realize these conversion kits are not all the same kind of package. One is a motor-and-controller set, one is a full rear wheel with a freewheel, and one is a front wheel with a display instrument. The highest-power option here is the FCH 26-inch 48V 1000W kit, while the lowest-priced entry is the 24V 250W brushed kit from SENDERPICK. Your frame, wheel size, and existing battery will narrow the choice before you compare the extras.
Listed Price Comparison
Listed prices for these four kits range from USD 68.46 to USD 189.99, a spread of about USD 121.53. The lower-priced kits tend to be partial conversions; the higher-priced one is a complete front wheel with controller and instrument.
| Product | Listed Price | Price Bar |
|---|---|---|
| 24V 250W Electric Bicycle Conversion Kit E-Bike Cycling Brush Motor & Controller | USD 68.46 | |
| 350W 36V Electric Bicycle Brushless Motor E-Bike Conversion Kit Adjustable Speed | USD 89.53 | |
| 20" E-Bike Rear Wheel Motor,Electric Bicycle Conversion Kit +7-speed Freewheel | USD 164.07 | |
| 26 inch Front Wheel E-Bike Electric Bicycle Conversion Kit 48V 1000W Hub Motor | USD 189.99 |
Decision Matrix
- Choose the 24V 250W kit if you want the lowest listed price and accept assembling a motor and controller onto your existing bike.
- Choose the 350W 36V kit if you have a spoked-wheel bike and want adjustable speed settings without paying for a full wheel.
- Choose the 20-inch rear wheel kit if you want a complete rear wheel with a 20x2.125 tire.
- Choose the FCH 26-inch front wheel kit if you want the highest listed power and a package that includes a controller and instrument.
Product Notes
24V 250W Electric Bicycle Conversion Kit E-Bike Cycling Brush Motor & Controller

The SENDERPICK 24V 250W kit is the entry point in this price comparison. It lists a pure copper brush motor, a 29.4V/1.6A charger, and a gross weight of 4.5kg. Assembly is required, and the kit is described as universal, so it is aimed at a range of standard bikes. The limitation is that you are not getting a laced wheel: this is a motor and controller conversion. It will take some fitting work to mount it onto your existing bike, which makes it a better fit for someone who already plans to spend time building the conversion.
350W 36V Electric Bicycle Brushless Motor E-Bike Conversion Kit Adjustable Speed

This 350W 36V brushless motor kit is listed for spoked-wheel bikes. The package includes a motor controller rated at 24/36V DC with a 16A max current, and the motor has three speed gears at 80%, 100%, and 110%. The listed gear ratio is 9.78:1, and assembly is required. The tradeoff is fit: it is described as suitable for spoked wheel bikes with a wheel diameter under 68, and it does not include a complete wheel. If you already have a spoked wheel in the right size, this is a straightforward motor-and-controller addition; if not, you will need to source the wheel separately.
20" E-Bike Rear Wheel Motor,Electric Bicycle Conversion Kit +7-speed Freewheel

This is the only product here listed specifically as a rear wheel conversion. It includes a 20-inch wheel with tire and tube, a 7-speed freewheel, and a brushless gearless hub motor. The description highlights high motor efficiency up to 88.7%, max torque of 35 N·m, and a top speed of 0-40km/h. It is also described as compatible with e-city bikes and universal frames. The limitation is the fixed wheel size: your bike should already accept 20x2.125 tires. If it does, this kit offers the most complete rear-wheel package in the group.
26 inch Front Wheel E-Bike Electric Bicycle Conversion Kit 48V 1000W Hub Motor

The FCH 26-inch kit is the most expensive and most powerful in this set. It is listed at 48V 1000W, uses a 26-inch front wheel with rim, and includes a 48V 26A controller, an SW900 instrument, and a grip set. The description highlights pedal assist, aluminum alloy construction, and manual brake cutoff to turn off the motor. The tradeoff is that this high-power front-wheel setup is more specialized: it comes as a 26-inch front wheel and a 48V electrical system, so the wheel size and voltage are fixed. If you can build around that platform, you get the most complete package here, but also the highest listed price.
Final Recommendation by Use Case
- For the lowest listed price: start with the 24V 250W SENDERPICK kit at USD 68.46 if you are comfortable with a brushed motor and assembling it onto your existing bike.
- For a spoked-wheel conversion with adjustable speed: the 350W 36V kit at USD 89.53 gives you three speed gears and a 24/36V controller.
- For a complete rear wheel: the 20-inch rear wheel kit at USD 164.07 includes the wheel, tire, and tube, making it a complete rear package.
- For maximum listed power: the FCH 26-inch front wheel kit at USD 189.99 delivers 48V 1000W and includes a controller plus SW900 instrument.