Skip to main content

Specialized Sirrus X Comp Carbon

Specialized Sirrus X Comp Carbon
  • Color: Gloss Purple Tint/Gold/Black Reflective
  • Color: Gloss Tarmac Black/Nice Blue/Black Reflective
Please select options


The Sirrus X Comp Carbon is far from your "normal" fitness bike. It features 700x38mm tires that let you explore the dirt when the time arises, a 1x11 drivetrain for ease of use, and you get rack/fender mounts.

We started with a high-quality FACT 9r carbon fiber construction that's lightweight and extremely responsive, not only making the Sirrus a better climber, but also making it easier to carry up the stairs after your commute. Now, onto what we like to think is the best part of the new Sirrus: our Future Shock. Essentially, it's a piston in the head tube with 20mm of travel. We developed this technology in partnership with McLaren Applied Technologies, and the result of this relationship is a host of drastic performance improvements, namely in the vertical compliance department. Without giving a physics lecture, we found that it improves smoothness, speed, and comfort in one fell swoop.

We equipped this bike with a 1x SRAM NX drivetrain to ensure reliable shifting and no dropped chains, plus next-level comfort that follows our scientifically tested and engineered Body Geometry components. So as you push yourself to reach your goals, you'll feel more connected to your bike than ever, leaving you feeling that you have the perfect partner on your path to health and wellbeing.

- The FACT 9r carbon fiber frame is engineered and designed with our Fitness Geometry, helping you ride more efficiently in a position that will see you riding comfortably, mile-after-mile. And the all-new Future Shock "suspension" system at the cockpit delivers a revolutionary degree of comfort and control.

- The durable and lightweight two-piece crankset will keep you pedaling for miles to come.

- The fast-rolling, 2Bliss Ready Tracer Pro tires are perfect for adventure. The fast-rolling center keeps resistance low on the road, while the shoulder knobs dig into corners in the dirt. And with this 2Bliss Ready design, you're able to run lower pressures for more grip & traction, while all but eliminating the risk of pinch flats.


Frame Specialized FACT 9r carbon, Fitness Geometry, 1x drivetrain specific, 12x142mm thru-axle, internal cable routing, flat-mount disc, Plug + Play fender mounts
Fork Specialized FACT 9r carbon, 12x100mm thru-axle, flat-mount disc, Plug + Play fender mounts
Axles Front: 12x100mm
Rear: 12x142mm
Rims/Wheels 700C disc, double-wall alloy, 30mm depth, 21mm internal width, disc-specific
Hubs Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 24/28h
Spokes Stainless, 14g
Tires Tracer Pro, 2Bliss Ready, 60TPI, folding bead w/ GRIPTON, 700x38mm
Crankset Forged aluminum, 2-piece, 24mm spindle, direct-mount chainring
Chainrings Aluminum, 42T
Bottom Bracket BSA for 24mm spindle
Chain KMC X11, 11-speed w/ Missing Link
Rear Derailleur SRAM NX, 11-speed
Cassette/Rear Cogs Sunrace, 11-speed, alloy spider, 11-42t
Shifters SRAM NX, 11-speed
Handlebars Double-butted alloy, 9-degree backsweep, 31.8mm
Tape/Grips Specialized Neutralizer, Body Geometry, locking grip
Stem Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Brakes Shimano MT201, hydraulic disc, resin pads, flat-mount, 160mm
Pedals Platform, alloy
Saddle Specialized Canopy Comp, hollow Cr-Mo rails
Seat Post Alloy, 2-bolt, 14mm offset, 27.2mm

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Gloss Purple Tint/Gold/Black Reflective / Small 888818520183 90919-5202 SIR46743533S
Gloss Purple Tint/Gold/Black Reflective / Medium 888818520619 90919-5203 SIR46327063M
Gloss Purple Tint/Gold/Black Reflective / Large 888818520916 90919-5204 SIR46848958L
Gloss Purple Tint/Gold/Black Reflective / X-Large 888818520169 90919-5205 SIR47980853L
Gloss Purple Tint/Gold/Black Reflective / XX-Large 888818520848 90919-5206 SIR48290074L
Gloss Tarmac Black/Nice Blue/Black Reflective / Small 888818520329 90919-5302 SIR37903629S
Gloss Tarmac Black/Nice Blue/Black Reflective / Medium 888818520190 90919-5303 SIR45622649M
Gloss Tarmac Black/Nice Blue/Black Reflective / Large 888818520640 90919-5304 SIR37175626L
Gloss Tarmac Black/Nice Blue/Black Reflective / X-Large 888818520121 90919-5305 SIR38755685L
Gloss Tarmac Black/Nice Blue/Black Reflective / XX-Large 888818519934 90919-5306 SIR39972953L