... 200~350w front and rear motor with rear rear rack lithium-ion battery , available with disc brake and six speed gear ... 1set of front wheel brushless geared motor with the mounted rim and spoke and tyre/tube ... mounted rim and spoke and tyre/tube available with disc brake and six speed gear freewheel, fork ... : 20",22",24”,26"/ 28"2, 1pcs Motor controller: 1:1 pedal assist3, 1pcs twist hand throttle4, ...