ECOTRIC 26" Inch Electric Bike White Electric Bicycle City E Bike Moped Pedal Assist Mountain Bike Strong 500W Motor for mountain ride, commuting, travel, daily use Max Speed: 20 mph Shimano External 7 Speed gear Battery: Lithium Ion Battery 36V 10AH ICR18650-26F Bicycle Weight : 55 LBS Max loading 260 LBS Frame Material: Aluminum Alloy Mechanical disc brake