








Offering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between.
SMOOTH; COMFORTABLE, AND EFFICIENT: Sirrus X provides the smoothest ride in its class. With bigger, confidence-inspiring tires, a slightly more upright riding position, and a super intuitive one-by drivetrain.
RIDER-FIRST ENGINEERED: Like all Specialized performance bikes, the geometry of each frame is uniquely crafted. This means that for every frame, each tube size is specifically selected to achieve the optimal balance of rigidity, weight, and responsiveness to ensure that no matter what size you re riding, you will experience the world s best ride.
NIMBLE: Class-leading light-weight, exceptional pedaling efficiency, and steering precision merge for confident, nearly telepathic handling characteristics. Lightweight A1 Alloy frame with clean internal cable routing, 3.5lbs (1.7kg) lighter than our Crosstrail Hydro model.
Maximum control through intuitive shifting with 1x8 wide range gearing, and powerful hydraulic disc brakes.
Float over rough terrain with fast rolling Specialized Pathfinder 42c tires featuring proprietary Gripton rubber compound.
Technical Specifications:
- Bottom Bracket: BSA, square-taper, 68mm
- Cassette: Shimano Cues, 9 speed, 11-46T
- Chain: KMC eGlide for 11-Speed Cues
- Chain Ring: Narrow Wide Steel 42T
- Crankset: Prowheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm
- Fork: Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
- Frame: Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
- Front Brake: Promax F1, hydraulic disc, flat-mount
- Front Hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
- Front Tire: Pathfinder Wirebead Fast Gravel 700X40C
- Handlebars: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
- Tubes: Standard 40mm SV 700x32-50
- Pedals: Specialized, platform, plastic
- Rear Brake: Promax F1, hydraulic disc, flat-mount, 160mm
- Rear Derailleur: Shimano, RD-U4000, CUES, Gs 9-Speed, Top Normal, Shadow Design, Direct Attachment
- Rear hub: Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
- Rear Tire: Pathfinder Wirebead Fast Gravel 700X40C
- Rims: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
- Saddle: Bridge Sport, Steel rails, 155/143mm
- Seat Binder: Bolt-type, 31.8mm
- Seat Post: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
- Shift Levers: Shimano, SL-U4000-9R, CUES, Right, 9-Speed Rapidfire, W/ Optical Gear Display
- Spokes: Stainless, 14g
- Stem: 3D-forged alloy, 31.8mm, 7-degree rise
SMOOTH; COMFORTABLE, AND EFFICIENT: Sirrus X provides the smoothest ride in its class. With bigger, confidence-inspiring tires, a slightly more upright riding position, and a super intuitive one-by drivetrain.
RIDER-FIRST ENGINEERED: Like all Specialized performance bikes, the geometry of each frame is uniquely crafted. This means that for every frame, each tube size is specifically selected to achieve the optimal balance of rigidity, weight, and responsiveness to ensure that no matter what size you re riding, you will experience the world s best ride.
NIMBLE: Class-leading light-weight, exceptional pedaling efficiency, and steering precision merge for confident, nearly telepathic handling characteristics. Lightweight A1 Alloy frame with clean internal cable routing, 3.5lbs (1.7kg) lighter than our Crosstrail Hydro model.
Maximum control through intuitive shifting with 1x8 wide range gearing, and powerful hydraulic disc brakes.
Float over rough terrain with fast rolling Specialized Pathfinder 42c tires featuring proprietary Gripton rubber compound.
Technical Specifications:
- Bottom Bracket: BSA, square-taper, 68mm
- Cassette: Shimano Cues, 9 speed, 11-46T
- Chain: KMC eGlide for 11-Speed Cues
- Chain Ring: Narrow Wide Steel 42T
- Crankset: Prowheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm
- Fork: Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
- Frame: Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
- Front Brake: Promax F1, hydraulic disc, flat-mount
- Front Hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
- Front Tire: Pathfinder Wirebead Fast Gravel 700X40C
- Handlebars: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
- Tubes: Standard 40mm SV 700x32-50
- Pedals: Specialized, platform, plastic
- Rear Brake: Promax F1, hydraulic disc, flat-mount, 160mm
- Rear Derailleur: Shimano, RD-U4000, CUES, Gs 9-Speed, Top Normal, Shadow Design, Direct Attachment
- Rear hub: Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
- Rear Tire: Pathfinder Wirebead Fast Gravel 700X40C
- Rims: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
- Saddle: Bridge Sport, Steel rails, 155/143mm
- Seat Binder: Bolt-type, 31.8mm
- Seat Post: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
- Shift Levers: Shimano, SL-U4000-9R, CUES, Right, 9-Speed Rapidfire, W/ Optical Gear Display
- Spokes: Stainless, 14g
- Stem: 3D-forged alloy, 31.8mm, 7-degree rise