Model Number: E5-1Certification: ceRated Passenger Capacity: One SeatStyle: Luxury TypeMax Speed: 30-50km/hRange per Power: 31 - 60 kmFrame Material: Aluminum AlloyMotor: BrushlessWheel Size: 20“Wattage: > 500wFoldable: NoPower Supply: Lithium BatteryVoltage: 48VOrigin: Mainland ChinaBattery: 17.5Ah+22.4AhBrake: Hydraulic disc brakeGear: 7-SpeedTire: 20"x4.0" inch TireFrame: 6061 Aluminum Alloy FrameMotor: Front 500W/1000W+Rear 500W/1000WShock absorption: Front and rear full shock absorption New Double Battery Dual Motor Electric Bicycle 1000W 2000W 17.5Ah 22.4Ah 40ah O