SMOOTH, COMFORTABLE, AND EFFICIENT: The Sirrus X offers the smoothest ride in its category. With wider, reassuring tires, a slightly more upright riding position, and an ultra-intuitive one-by-way drivetrain.

RIDER-FOCUSED DESIGN: Like all Specialized performance bikes, the geometry of each frame is unique. For every frame, each tube size is specifically selected to achieve the optimal balance of stiffness, weight, and responsiveness, ensuring the best riding experience in the world, no matter your size.

AGILITY: Unmatched lightness, exceptional pedaling efficiency, and precise steering combine for confident, almost telepathic handling.

FEATURES:

Frame:

• Frame: Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
• SWAT
• Suspension: Hi-Ten steel fork, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release

Brakes:

• Front brake: Promax F1, hydraulic disc, flat-mount, 160mm
• Rear brake: Promax F1, hydraulic disc, flat-mount, 160mm

Drivetrain:

• Shifter: microSHIFT Acolyte, 8-speed
• Rear derailleur: MicroSHIFT Acolyte 8 Speed, with Clutch
• Cassette: microSHIFT Acolyte CS-H084, 12-42t, 8-speed
• Chain: KMC X8 w/ Missing Link™
• Crank arms: Alloy Forged Arms
• Chainring: 40T
• Bottom bracket: BSA, square-taper, 68mm

Wheels and tires:

• Rims: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
• Front hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
• Rear hub: Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
• Spokes: Stainless, 14g
• Front tire: Pathfinder Sport, 700x42
• Rear tire: Pathfinder Sport, 700x42
• Tubes: Standard 40mm SV 700x32-50
• Cockpit: Stem: 3D-forged alloy, 31.8mm, 7-degree rise
• Handlebar: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
• Handlebar tape: Specialized Neutralizer, Body Geometry, locking grip
• Saddle: Bridge Sport, Steel rails, 155/143mm
• Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
• Seat collar: Bolt-type, 31.8mm

ACCESSORIES:

• Pedals: Specialized Body Geometry Fitness, Platform, Plastic