brushless DC motor Features:Compact,Powerful,Beautiful Appearance,Suitable for Use in Lightweight Models Pedelec Motor system functions:1.linear speed control,2.brake power-off,3.mutte start,4.soft start,5.PAS,6.cruise,7.fault display,8.sensorless,9.sleepRated Voltage:24V---48V brushless DC motor for electric bicycle (100 series)