The Specialized Sirrus X 1.0 Step-Through bike excels on asphalt, gravel, and any intermediate terrain. The Sirrus X offers the smoothest ride in its category, providing an unprecedented combination of comfort, efficiency, and handling. With larger tires that inspire confidence, a slightly more upright riding position, and a super intuitive single-chainring drivetrain. Like all high-performance Specialized bikes, the geometry of each frame is uniquely crafted. This means that for each frame, every tube size is specifically selected to achieve the optimal balance of stiffness, weight, and responsiveness to ensure that, regardless of the size you ride, you will experience the best ride in the world. Class-leading lightness, exceptional pedaling efficiency, and steering precision merge for handling characteristics that are safe and almost telepathic.
- Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm.
- Seat Collar: Bolt-type, 31.8mm.
- Saddle: Bridge Sport, Steel rails, 155/143mm.
- Handlebar: Double-butted alloy, 5-degree backsweep, 25.4mm.
- Handlebar Tape: Specialized Neutralizer, Body Geometry, locking grip.
- Rear Hub: Alloy, 6-bolt disc, 7-speed freehub, loose ball bearing, quick-release, 32h.
- Frame: Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug Play rack/fender mounts.
- Fork: Hi-Ten steel, flat-mount disc, Plug Play fender mounts, low rider rack mounts, quick-release.
- Front Brake: Lee Chi, Mechanical Disc, 160.
- Rear Brake: Lee Chi, Mechanical Disc, 160.
- Gearing: 34T.
- Freewheel: microSHIFT CS-H074, 12-40t, 7-Speed.
- Crankset: PROWHEEL, Alloy, 165mm.
- Chain: KMC X8 w/ Missing Link.
- Rear Derailleur: Shimano Acera RD-M3020, 7-Speed.
- Shifters: Shimano Altus SL-M315-7R, 7-Speed.
- Bottom Bracket: Square-tapered, 68mm.
- Wheels: 700C disc brake, double-wall alloy, 22mm depth, 21mm internal width.
- Front Hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h.
- Front Tire: Pathfinder Sport, 700x42mm.
- Rear Tire: Pathfinder Sport, 700x42mm.
- Spokes: Stainless, 14g.
- Inner Tubes: Standard 40mm SV 700x32-50.
- Stem: Alloy, 25.4mm, 10deg.
- Pedals: Specialized Body Geometry Fitness, Platform, Plastic.
- Color: Blue (Satin Deep Marine / Grey Blue Reflective).
