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Specialized Sirrus 4.0

Specialized Sirrus 4.0
Satin Black/Smoke/Black Reflective
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You have places to go, people to see, and fitness goals to achieve. We get it—life moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. Sirrus features a super light Aluminum Alloy and carbon fiber construction, as well as reliable Shimano components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide reliable stopping power in any condition, and comfortable, ergonomically designed Body Geometry touchpoints are there to take the sting out of longer rides. So, as you push yourself to reach your goals, you'll feel more connected to your bike and know that you have the perfect partner with Sirrus.

- Carbon FACT 9 fork delivers comfort and saves nearly 3 pounds (1.2kg) over Sirrus 2.0 model.
- Through axle hub connection for positive wheel alignment and no rub Disc brakes.
- Wide range 2x10 MicroShift components for intuitive and precise shifting.


Frame Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts
Fork Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
Rims/Wheels 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 28h
Hubs Alloy, 6-bolt disc,
Spokes Stainless, 14g
Tires RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Crankset Praxis Alba M24, solid forged arms, 6061 outer ring, steel inner ring, 110 BCD, 10-speed
Chainrings 40T
Bottom Bracket Praxis M24, BSA
Chain KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
Front Derailleur MicroSHIFT FD-R522, Band-clamp
Rear Derailleur MicroSHIFT RD-R55S, short cage
Cassette/Rear Cogs SUNRACE,CSRS0.TAU0.XS0,11-32T,10SP
Shifters microSHIFT, 10-speed
Handlebars Double-butted alloy, 9-degree backsweep, 31.8mm
Tape/Grips Specialized Body Geometry, lock-on
Stem Future Stem, Comp
Brakes Tektro HD-R280, hydraulic disc, resin pads, flat-mount
Pedals Specialized Body Geometry Fitness, platform, plastic
Saddle Body Geometry Power Sport, steel rails
Seat Post Alloy, 2-bolt, 14mm offset, 27.2mm

* Subject to change without notice.

Part Numbers

Option MPN Store SKU
Satin Black/Smoke/Black Reflective / X-Small 90922-5101 0433
Satin Black/Smoke/Black Reflective / Small 90922-5102 0434
Satin Black/Smoke/Black Reflective / Medium 90922-5103 0435
Satin Black/Smoke/Black Reflective / Large 90922-5104 0436