... 350W with lithium-ion battery. Front wheel and rear wheel motor kit available with disc brake and ... the following parts.1, 1set of front wheel brushless gearless motor with the mounted rim and spoke ... size: 20", 22" ,24”,26"/ 28"Front wheel motor available with disc brake, fork width require 100mmRear ... speed freewheel, fork width require 135mm 2, 1pcs Motor controller: 1:1 pedal assist3, 1pcs twist hand ...