The Serfas E Dash Step Through 500w E Bike takes pedal assist biking to new levels. With pedal power to take you up to 28 miles an hour, you can cover some serious ground quickly with the Serfas E Dash. Equipped with a 500-watt 48V brushless rear hub motor, you have 5 different levels of pedal assist power to choose form on your rides. From flats, to cruising to long hill climbs, anything is now attainable with a pedal assist bike. With a rechargeable battery you can bike up to 60 miles on a single charge depending on level of pedal assist you choose to use. (30-60 is the range) Great componentry to include disk brakes, Shimano shifters and derailer makes this bike a true contender in the E- Bike commuter category. For fitness, cruising, errand running or just getting together for a casual ride with friends or family, the Serfas E Dash Step Through 500w E Bike stands above the rest.