Please kindly leave a message to us after place the order. 1 Available size available: 20'' 24'' 26'' 27.5'' 28'' 29'' 700C, please advise which size you need. 2 When you place the order, please message to us which wheel you need, front or rear wheel. 3 Motor: front motor/ rear thread motor/ rear cassette motor (if rear cassette motor is required, the additional cost will be charged).
4 Throttle: if the thumb throttle is required, please leave a message to us. Hydraulic brake sensor - (If required, the additional cost will be charged). Thumb throttle (if required, please leave a message to us). BZ-4(8)- 8 magnets PAS. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Electric Bicycle Components".The seller is "outdoor-sneakers" and is located in this country: CN. This item can be shipped worldwide.