... SYSTEM24v-10AH systemOTHER PARTS SAME CHOICE AI LI SYSTEM 12"-28"700C20KG36v-10AH systemoTHER PARTS SAME ... CHOICE AI LI SYSTEM 12"-28"700C25KG24v KIT 12"-28"700C7- ... 12"-28"700C7-10KG48v KIT 7-1OKG Electric system MotorFront/rear wheel,light,high speed,brushlessGreat ... Canada)b.anti-water&easy connect controller systemwhole system for display ,throttle,brakepasnew design ...