They say that every journey begins with a single step, but when that journey is related to exercise, that first step can sure be a doozy. But that one step, or in this case pedal stroke, can be life-changing - and there's no better machine to take the plunge with than with the Specialized Roll. It has everything you need to help achieve your goals, like a comfortable and upright geometry that makes getting on and off the bike super easy, wide and grippy 650b tires, hassle-free mechanical disc brakes, and a reliable mix of components that are built to withstand years of riding. You don't have to sacrifice, you just need the Roll 2.0 Low-Entry. Suggested Use City / Bike Path Frame Specialized A1 Premium Aluminum, Low Entry , Ground Control Positioning, formed tubes, post-mount disc, fender/rack mounts Rear Shock N/A Fork Steel formed tubes, post-mount disc, fender/rack mounts Handlebars Specialized Roll, 6061 alloy, Double butted, 15-degree backsweep, 136mm rise, 31.8mm Brakes Tektro, mechanical disc, resin pads, 160mm Derailleur microSHIFT RD-M26S, 7-speed Shift Levers microSHIFT TS39 Trigger shift, 7-speed Crankset Forged aluminum arms, 3-piece, Single speed, 42T Bottom Bracket 68mm, square taper, 124.5mm length Chain KMC Z7, 7-speed w/ Missing Link™ Cassette SunRace, 7-Speed, 11-34t Wheels Rims 650b disc, double-wall alloy, pinned, 32h Hubs Front: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h Rear: Alloy, 6-bolt disc, 7-speed freehub, loose ball bearing, quick-release, 32h Tires Nimbus II Sport, 650b x 2.3" Saddle Specialized Body Geometry Comfort Gel Seatpost Alloy, 2-bolt clamp, 30.9mm Weight 13.6kg (29 lb, 15.7 oz) based on size Medium *Specifications are subject to change without notice