There is a 24" bicycle rim as default in this link. If you need other size, please contact us before purchasing. Thank you very much.

MXUS 3000W Hub Motor Kit 20 24 26" Bicycle Wheel 45H 135mm 72v 80A 100A Rear Drive Ebike Conversion Electric Bike Set

The motor kit
1. 72V 3000W mxus hub motor
2. 20-28" bicycle rim
3. 72V 80A/100A square wave controller
4. S830/SW900/UKC1 LCD display
5. thumb throttle
6. ebrake sensor
7. 12 magnet PAS
8. 1T4 Waterproof cable.