Ebike Motor, Controller, and Display Kits: 20-Inch 48V vs 27.5-Inch 72V vs 1500W

Quick Take

A conversion kit changes how you use a bike, but the first decision is mechanical: what wheel size does your frame accept? Four kits here span 48V and 72V builds, with prices from USD 147.57 to USD 309.52. Two of them are the same 1000W wheel kit at the same price, so the real choice is between the two wheel sizes represented here and between a wheel-only package and a bundle that brings along a controller and display. If your frame is compact, the smaller-wheel path makes sense. If you are building around a larger wheel, the larger-wheel bundle is the one that fits that size.

Listed-Price Comparison

Decision Matrix

• If your frame uses a small wheel and you want to keep the entry cost down, the 1000W wheel kit is the direct fit, provided you have a plan for the controller and display.
• If your frame uses a 27.5-inch rear wheel and you want a more complete bundle, the 72V 2000W kit pairs the motor wheel with a controller, LCD display, throttle, pedal-assist sensor, and brake lever.
• If your frame uses a small rear wheel but you want more than the base 1000W level, the 1500W rear hub kit adds an LCD and higher power while staying in the same wheel-size family.

Product Notes

1000W Electric Bicycle Front/Rear Wheel E Bike Motor Conversion Kit Hub 20" 48V

This kit appears twice in the group at the same price, so you can treat the two entries as the same wheel. It is the least expensive path into a 20-inch 48V build, and it arrives as a hub-motor wheel with tire and tube sized for 20'' x 2.125 tires. The package listed here is a single wheel, so if your build needs a controller, display, or throttle in the same box, the higher-priced bundles are the ones that include those parts. For a compact frame where you already know which electronics you want to use, this is the lower-price starting point.

72V E-Bike Motor 27.5" Rear Wheel LCD Electric Bicycle Conversion Kit 2000W

If your frame is built around a 27.5-inch rear wheel, this kit is the one that matches that size. It comes with more than the motor wheel: the package includes a controller, LCD display, 9-speed flywheel, throttle, pedal-assist sensor, power-off brake lever, controller bag, and English manual. That makes it a full-system direction for buyers who want the motor, controller, display, and support parts together. The trade-off is fit: a 27.5-inch rear wheel will not drop into a small-wheel frame, so check your frame's wheel size before ordering.

20in Rear Wheel 48V 1500W Electric Bicycle Ebike Conversion Kit Hub Motor LCD

This 20-inch rear hub motor takes the compact wheel size and moves the power figure up to 1500W. The kit includes a 48V 1500W controller, an LCD display, a power-off brake lever, and 7-speed gearing. The wheel measures 58 by 25 cm and has a rated speed of 500RPM. The 48V 20A lithium battery is not included, and assembly is required, so the total build cost depends on the battery you choose and the time you spend wiring. If you already have or can source a 48V battery, this is a direct 20-inch rear-wheel route to a display-equipped conversion without moving to a larger wheel size.

Final Recommendation by Use Case

• For a small-wheel build where cost is the main constraint, the 1000W wheel kit is the straightforward pick. Just plan for the controller and display separately.
• For a full-size frame, the 72V 2000W rear-wheel kit is the bundle to choose if you want the motor, controller, display, and support parts together.
• For a small-wheel rear build that wants a display and more power, the 1500W kit is the middle path. It still needs a battery, but the controller and display are already part of the package.