From city commutes to rolling adventures through the countryside, the Serfas eDASH series of Class 2 e-bikes offer comfort and convenience in a lightweight package. Equipped with a Bafang 350W 36V brushless rear hub motor, a 446Wh battery, and five levels of pedal assistance, you&';ll have no problem exploring new places to ride at speeds up to 20mph. Mechanical disc brakes make stopping easy-even in wet weather-and the Shimano 7-speed drivetrain has just enough gearing to ensure every outing is full of fun. The Step-through model offers greater accessibility for those with limited range of motion or who simply enjoy the extra ease a lower frame height offers. Specs Frame Step-through 6061 Double-Butted Aluminum Alloy w/ Internal Battery Tires SerfasA(R) E-Drifter 27.5 x 2.35 Shifters ShimanoA(R) 7-Speed SL-M315 Rear Derailleur ShimanoA(R) RD-TY300D 7-Speed Brakes TektroA(R) MD-M280 Mechanical Disc w/ 180mm Rotors Handlebars Zoom VLG-649 Aluminum 31.8, 15-Degree Sweptback Motor BafangA(R) 350W 36V Brushless Rear Hub Motor Battery Lithium-ion 36V, 12.4Ah (446.4Wh) w/ LGA(R) Cells