ProdecoTech v3.5 Stride 500 36V 500W 8 Speed 12Ah Li Ion Electric Bicycle, Black Pearl Metallic Gloss, 26-Inch/One Size Step Thru Aluminum Frame Rear Direct Drive 36V 500W Motor Continental Town& Country Tire 26" X 2.1" Speed 20mph; Distance per hour 28-38 Miles Twist Throttle Control