200~350w front and rear motor with rear rear rack lithium-ion battery , available with disc ... including the following parts.1, 1set of front wheel brushless geared motor with the mounted rim and spoke and tyre/tube available ... 24V 250W , 36v 250w/350w brushless geared motorWheel size: 20",22",24”,26"/ 28"2, 1pcs Motor controller: 1:1 pedal assist3, 1pcs ...