Specialized Sirrus X 1.0 Step Through 2026

The Sirrus X provides the perfect combination of comfort, efficiency and agility, excelling both on tarmac and off-road.

Comfort and efficiency
With wide tyres, a semi-upright riding position and intuitive drivetrain, the Sirrus X is extremely comfortable.

Rider-First Engineered
Like all Specialised high-end bikes, the geometry of each frame size has been individually designed to achieve the right balance of stiffness, weight and responsiveness. No matter what the rider's height, the riding experience will be the same.

Agile
The lightness, efficiency and precision of the Sirrus X give it almost telepathic handling.

Features

• Lightweight A1 Alloy frame with clean internal cable routing, 3.5lbs (1.7kg).
• Maximum control through intuitive shifting with 1x7 wide range gearing.
• Float over rough terrain with fast rolling Specialised Pathfinder 42c tyres featuring proprietary Gripton rubber compound.

Tech Spec

Frame

• Frame: Specialised A1 Premium Aluminium, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts

Suspension

• Fork: Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release

Brakes

• Front brake: Lee Chi, Mechanical Disc
• Rear brake: Lee Chi, Mechanical Disc

Drivetrain

• Shifters: Shimano Altus SL-M315-7R, 7-speed
• Rear derailleur: Shimano Acera, 8-speed
• Sprocket set: microSHIFT CS-H074, 12-40t, 7-Speed
• Chain: KMC X8 w/ Missing Link™
• Crankset: Prowheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm
• Gears: Narrow Wide Steel 42T
• Bottom bracket: Square-tapered, 68mm

Wheels & Tyres

• Rims: 700C disc brake, double-wall alloy, 22mm depth, 21mm internal width
• Front hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
• Spokes: Stainless, 14g
• Front tyre: Pathfinder Wirebead Fast Gravel 700X40C
• Rear tyre: Pathfinder Wirebead Fast Gravel 700X40C
• Inner tubes: Standard 40mm SV 700x32-50
• Rear hub: Alloy, 6-bolt disc, 8/9-Speed freehub, loose ball bearing, quick-release, 36h, 10x135mm

Cockpit

• Stem: 3D-forged alloy, 31.8mm, 7-degree rise
• Handlebar: Specialised, alloy, 15-degree backsweep, 46mm rise, 31.8mm
• Handlebar tape: Specialised Neutralizer, Body Geometry, locking grip
• Saddle: Bridge Sport, steel rails, 155/143mm
• Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
• Seat clamp: Bolt-type, 31.8mm
• Pedals: Specialised, platform

Producer's notes: depending on component availability, specifications are subject to change without notice. Images are for illustrative purposes only.