1.electric tricycle motor 2.geared e-tricycle motor 3.good price and high efficiency power:350W-1000W ... size:16"-18",According to clients requirments 1.brushless,used for long time(bearing),no need to maintain2.less space and ... good creeping slop capacity4.no spark,no electric interference,explosion prevention5.highh efficiency,less electric power consumption6.large starting power,strong output ...