21 speed electric bicycle Aluminum alloy electric bike for adult 3 knifes 26 inch double disc brake e bike mountain ebike

SPECIFICATIONSWheel size: 26inchWheel Size: 26“Wattage: 251 - 350wVoltage: 36VStyle: Standard TypeSpeed: 21 speedRated Passenger Capacity: One SeatRange per Power: 31 - 60 kmProduct name: 21speed electric bicycle Aluminum alloy electric bike for adultPower Supply: Lithium BatteryPacking size: 132*20*72cmOrigin: Mainland ChinaN.W.: 23kgMotor: 350WMotor: BrushlessModel Number: JSYE9Max Speed: <30km/hG.W.: 25kgFrame Material: Aluminum AlloyFoldable: NoColor: Black red/Black orangeCertification: ceBatterey: 6ah/10ah/13ah