Challenging environments and heavy loads are no match for the uncompromising and award-winning Boost E. This compact and extremely sturdy Etility bike is always ready for the next adventure - close to home or far from civilization. The rigid aluminum frame and big 24" x 2.6" custom tires combine with the Bosch Performance Line Electric motor to provide a powerful, yet composed ride with assistance up to 20mph, and the ability to carry up to a gross weight of 440lb including the rider, bike and all cargo. The upright riding position and ergonomic handlebar design lets you ride with purpose without sacrificing comfort and maneuverability. And a smart, interchangeable rack and rail system lets you pick and choose from dozens of possible configurations to suit the mission. Capability meets versatility to make the Boost E the ebike choice of professional rescue teams, adventurists, bike couriers and everyday suburban explorers. - Bosch Performance 250W, 65Nm motor and Bosch Powerpack 400Wh Lithium-Ion Battery - Bosch Purion On-Board Computer (5 Riding Modes) - Range 25-85mi (40-135km) Dep. On Mode/Battery - German Supernova Front and Rear Lights - Shimano Deore 10-Speed and Hydraulic disc Brakes - Oversized 6061 Aluminum Alloy Fork w/ Integrated Headset - Multifunction Rear Rack (Max. Load 130lbs/60kg) Sizing: - One Frame Size: Fits Riders From 5'1" to 6'3"