Specialized Sirrus X 4.0 EQ (2026)

Specialized Sirrus X is the perfect hybrid bike for those who want to go beyond tarmac and experience every ride with speed, comfort, and total control. From commuting to work to Sunday gravel roads, this bike is designed for those who want to ride everywhere, with no compromises.

Maximum comfort and efficiency
The wider tires offer grip and safety on cobblestones, light off-road, and damaged asphalt, while the slightly more upright position gives you a relaxed yet always responsive ride. The 1x drivetrain is intuitive, quiet, and requires very little maintenance, ideal for those who just want to hop on the saddle and go.

Rider-First Engineered geometry
Every frame size is specifically designed to ensure the best balance between stiffness, weight, and responsiveness. Whether you are short or tall, the Sirrus X will always offer a stable, precise, and predictable ride.

Agile, light, fun
The lightweight frame and excellent pedaling efficiency allow for brisk accelerations and almost “telepathic” steering control, making the Specialized Sirrus X the ideal choice for fitness, commuting, and light gravel adventures.

TECHNICAL SPECIFICATIONS

FRAMESET

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

WHEELS

• Tires:

  • Front: Pathfinder Wirebead Fast Gravel 700x40C

  • Rear: Pathfinder Wirebead Fast Gravel 700x40C

• Tubes: Standard 40mm SV 700x32-50

DRIVETRAIN

• Crankset: Forged aluminum arms, 24mm spindle, narrow-wide steel chainring 40t, chainguard

• Chain: KMC X12EPT, 12-speed, anti-corrosion coating w/ reusable Missing Link™

• Cassette: Sunrace, 12-speed, 11-51T

• Rear derailleur: Shimano Deore, M6100, 12-speed, Shadow Plus

• Shifters: Shimano Deore M6100, 12-speed

• Bottom bracket: Threaded BSA 68mm

COMPONENTS

• Saddle: Body Geometry Power Sport, steel rails

• Seat collar: Bolt-type, 31.8mm

• Seatpost: Alloy, 2-bolt, 14mm offset, 27.2mm

• Handlebar: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm

• Stem: Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

• Front brake: Shimano BR-MT200, hydraulic disc, 160mm

• Rear brake: Shimano BR-MT200, hydraulic disc, 160mm

The manufacturer reserves the right to make changes to the product information on the website at any time without notice, including data relating to equipment, specifications, models, colors, materials, and prices. Due to supply chain issues, compatible parts may be replaced at any time without notice.