2026 Specialized Sirrus X 4.0

Frame & fit interfaces

The standards that decide what fits this bike.

Frame material

Aluminum

Wheel size

700c"

Bottom bracket

Threaded BSA 68mm

Stock build

• ForkSpecialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
• StemSpecialized Future Stem, Comp
• ChainKMC eGlide for 11-Speed CUES
• GripsSpecialized Neutralizer, Body Geometry, locking grip
• PedalsSpecialized platform
• SaddleSpecialized Body Geometry Power Sport, steel rails
• CassetteShimano CS-LG400-11, CUES, 11-Speed, 11-50T
• CranksetProWheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm
• SeatpostAlloy, 2-bolt, 14mm offset, 27.2mm
• ShiftersShimano Cues SL-U6000, 11-Speed
• HandlebarAlloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
• Rear TireSpecialized Pathfinder Wirebead Fast Gravel 700X40C
• Front TireSpecialized Pathfinder Wirebead Fast Gravel 700X40C
• Rear BrakeShimano BR-MT200
• Rear WheelAlloy, Center lock Disc, High-Low Flange, Sealed Cartridge Bearing, 32H, 12mm Axle, 142mm Spacing
• Front BrakeShimano BR-MT200
• Front WheelAlloy, sealed cartridge bearings, Center Lock, 12x100mm thru-axle, 24h
• Bottom BracketThreaded BSA 68mm, 24mm spindle
• Rear DerailleurShimano CUES U6020