Shoppers looking for an ebike motor, controller, or display often get stuck on one question: should you buy a full wheel kit or just a controller? The four kits below show how different that answer can be. Prices run from $68.46 for a 24V 250W motor-plus-controller package up to $309.52 for a 72V 2000W rear-wheel bundle with LCD display. The middle options add a 20-inch rear motor wheel and a 48V 18A controller-only upgrade.
Quick take
- The cheapest complete conversion start is the 24V 250W kit at $68.46.
- The compact rear motor wheel kit at $164.07 works for city builds.
- The $309.52 72V 2000W bundle is the most complete high-power package.
- The $69.35 controller-only option suits a 48V system that already has a display.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| 24V 250W Brush Motor & Controller Kit | USD 68.46 | |
| 20-Inch Rear Wheel Motor Conversion Kit | USD 164.07 | |
| 72V 2000W 27.5-Inch Rear Wheel LCD Kit | USD 309.52 | |
| X035-AB007 48V 18A Brushless Motor Controller | USD 69.35 |
Decision matrix
| Your situation | Strongest match | Why it makes sense |
|---|---|---|
| New to ebike conversions and want an inexpensive complete start | 24V 250W Brush Motor & Controller Kit | It bundles a 24V motor and controller for a basic universal bike. |
| Building a compact city bike with small wheels | 20-Inch Rear Wheel Motor Conversion Kit | The 20-inch wheel and 7-speed freewheel are made for that size class. |
| Building a high-power ebike that needs a display and controls | 72V 2000W 27.5-Inch Rear Wheel LCD Kit | The kit includes a rear wheel, controller, display, throttle, and pedal assist sensor. |
| Upgrading an existing 48V bike with a new controller | X035-AB007 48V 18A Brushless Motor Controller | It is a controller-only choice with 5S display protocol support. |
24V 250W Electric Bicycle Conversion Kit with Brush Motor and Controller
The SENDERPICK kit is the lowest-priced complete motor-and-controller bundle in this set. It pairs a 24V 250W pure copper brush motor with a charger, and the black components are made from aluminum and iron. The kit is marked for universal bike compatibility and assembly is required, so it fits a DIY project where you are ready to work on your own frame. It also lists DOT and SAE certification. The real constraint is the 24V platform: this is a modest assist kit, not a high-speed commuter setup. Choose it when you want an inexpensive way to try an ebike conversion.
20-Inch E-Bike Rear Wheel Motor Conversion Kit with 7-Speed Freewheel
This rear hub motor wheel sits in the middle of the group and brings a full wheel assembly to the table. It is brushless and gearless, with 35 N·m maximum torque and a 0 to 40 km/h speed range. The wheel fits 20-inch by 2.125-inch tires, supports a standard 6-hole disc brake, and includes a 7-speed freewheel. Hub width is listed as either 100mm front or 135mm rear, so the exact fit depends on your frame. It is marked for e-city bike or universal use. The limitation is the wheel diameter: it is built for the 20-inch size class, so it is best matched to a bike that already uses 20-inch wheels.
72V E-Bike Motor 27.5-Inch Rear Wheel LCD Conversion Kit, 2000W
The most powerful and most complete package here centers on a 27.5-inch aluminum rear motor wheel rated at 2000W and 72V, with 60 N·m torque and 560rpm rotational speed. The bundle also comes with a 9-speed flywheel, controller, LCD display, throttle, pedal assist sensor, power-off brake lever, controller bag, and an English manual. A one-year manufacturer warranty is listed. The catch is the 72V spec: this is a performance-oriented conversion, so it is aimed at someone building or upgrading a high-power ebike rather than a basic commuter.
Brushless Motor Controller X035-AB007 48V 18A with 5S Display Support
The controller-only option is a focused path if your 48V bike already has the rest of the drivetrain. It is suitable for electric bicycles, MTB-style bikes, and scooters, and it lists a 12Ah lithium-ion battery reference. The 18A rating pairs with motor energy levels from 250W to 1000W, which gives you flexibility across several hub motors. The key limitation is the 5S protocol: the controller and display need to use the same protocol, otherwise error codes can appear. If your current controller label and connector match the 5S standard, this is the most budget-friendly controller-only way to go.
Bottom line by use case
- For the smallest budget and a basic bike, start with the 24V 250W kit.
- For a 20-inch city build, choose the 20-inch rear motor wheel kit.
- For a high-power 72V project, the 27.5-inch 2000W LCD kit is the complete path.
- For a 48V bike that only needs a new controller, grab the X035-AB007.
