... driving high speed brushless; 2. Battery: 36V/ electric bike for kids,electric mountain bike (LD-EB101)Electric system1. Motor: Motor front driving high ... . Speed gears: SHIMANO 7 speed gears8. Derailleur: SHIMANO RD-TX51;9. Handle Bar: ZOOM Al alloy;10. Stem: ZOOM Al alloy ... bage, helmet, lock, water bottle, mini pump, speed meter electric bike for kids,electric mountain bike (LD-EB101)