Bicycle Components & Accessories
36V250W/36V500W/48V/500W/48V/750W/48V/1000W Mid-Drive Motor Kit Three-Speed Shift Mode Electric Bicycle Conversion Kit Suitable for Mountain Bike Road Bike, Leisure 48V750W,44T
Specifications: The mid-drive kit is compatible with 68-73mm/100mm/120mm and 34-36mm (inner diameter) bottom brackets. You can install the mid-drive motor on mountain bikes, road bikes, and commuter bikes. Perfect Performance: The electric bike...
https://www.bizrate.co.uk/bicyclecomponents_accessories/36v250w-36v500w-48v-500w-48v-750w-48v-1000w-mid-drive-motor-kit-three-speed-oid40155221294.html