Advantage:
1) Has small current,high efficiency and long riding distance;
2) Is light,energy-saving and protective for the battery;
3) Is free of maintenance and has a long service life;
4) Produces small noise and is of soft start-up;
5) Has great output power,quick starting and powerful climbing capacity;
6) Gears are made of high strength and abrasion resistant high temperature nylon
7) Reasonably structured and durable in use.