new design,high speed,light weight electric bike light weight,high speed electric bicycle:GBB02BMotor: light weight high speed brushless Geared hub motor.180W - 250W hub motor for European500W DC for North American.200W for AustraliaBattery: options:24V/10Ah,36V/10Ah,36V/16Ah li-ion.36V/10Ah LiFePo4 battery.PAS: intelligent pedal assistant system.Controller: SAIKE intelligent brushless.Charger ...