Sirrus X 4.0

• 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.

Frameset

• Frame: Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts

Suspension

• Fork: Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock
  1.5

Brakes

• Front Brake: Tektro HD-R510, hydraulic disc, 160mm
• Rear Brake: Tektro HD-R510, hydraulic disc, 160mm

Drivetrain

• Chainrings: 34T
• Rear Derailleur: Shimano Cues Shadow RD U6000, 11-Speed
• Chain: KMC eGlide for 9-Speed Cues
• Crankset: PROWHEEL, Alloy, 165mm
• Shift Levers: Shimano Cues SL-U6000, 11-Speed
• Cassette: Shimano, CS-LG400-11, Cues, 11-Speed, 11-50T
• Bottom Bracket: Threaded BSA 68mm, 24mm spindle

Wheels & tires

• Rims: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
• Front Hub: Alloy, Center lock Disc, High-Low Flange, Sealed Cartridge Bearing, 24H, 12mm Axle, 100mm Spacing
• Front Tire: Pathfinder Sport, 700x38
• Rear Tire: Pathfinder Sport, 700x38
• Rear Hub: Alloy, Center lock Disc, High-Low Flange, Sealed Cartridge Bearing, 32H, 12mm Axle, 142mm Spacing
• Spokes: Stainless, 14g
• Inner Tubes: Standard 40mm SV 700x32-50

Cockpit

• Handlebars: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
• SeatPost: Alloy, 2-bolt, 14mm offset, 27.2mm
• Seat Binder: Bolt-type, 31.8mm
• Stem: Future Stem, Comp
• Saddle: Power Comp, Hollow Cr-mo rails, 155/143mm
• Tape: Specialized Neutralizer, Body Geometry, locking grip

Accessories

• Pedals: Specialized Body Geometry Fitness, Platform, Plastic

Weight

• Weight: 10.64kg (23 lb, 7.3 oz)
• Weight Size: LG

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice