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Specialized Sirrus 4.0 - 2020

Specialized Sirrus 4.0
  • Color: Flake Silver/Charcoal/Black
  • Color: UV Lilac/Black
Please select options
This item is not permitted to be shipped, however it can be purchased online and picked up at Rubber Soul Bicycles for your convenience.


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 frame and fork saves over 1.4 pounds (.6kg) and is a piece of art all unto
- Through axle hub connection for positive wheel alignment and no rub Disc brakes.
- Wide range 2x9 Shimano Sora Road components for intuitive and precise shifting.


Frame Specialized FACT 9r carbon, Fitness Geometry, 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
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 2-piece, forged arms, 24mm spindle, steel chainrings w/ chainguard
Chainrings 48/32T
Bottom Bracket BSA for 24mm spindle
Chain KMC X9, 9-speed w/ Missing Link
Front Derailleur microSHIFT R9, 9-speed, 31.8mm clamp
Rear Derailleur Shimano Sora, 9-speed
Cassette/Rear Cogs Shimano Sora, 9-speed, 11-34t
Shifters microSHIFT, 9-speed
Handlebars Double-butted alloy, 9-degree backsweep, 31.8mm
Tape/Grips Specialized Body Geometry, lock-on, integrated bar ends, hidden 4/5mm hex key
Stem Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Brakes Tektro HD-R280, hydraulic disc, resin pads, flat-mount
Pedals Platform
Saddle Specialized Power, hollow steel rails, 155/143mm
Seat Post Alloy, 12mm offset, 2-bolt clamp, 27.2mm

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Flake Silver/Charcoal/Black / X-Small 888818581580 90920-5001 SIR34165814S
Flake Silver/Charcoal/Black / Small 888818581863 90920-5002 SIR33472798S
Flake Silver/Charcoal/Black / Medium 888818581795 90920-5003 SIR33170086M
Flake Silver/Charcoal/Black / Large 888818582303 90920-5004 SIR33956823L
Flake Silver/Charcoal/Black / X-Large 888818581900 90920-5005 SIR34843213L
Flake Silver/Charcoal/Black / XX-Large 888818582198 90920-5006 SIR3575308L
UV Lilac/Black / X-Small 888818582143 90920-5101 SIR22906255S
UV Lilac/Black / Small 888818582044 90920-5102 SIR21389228S
UV Lilac/Black / Medium 888818581801 90920-5103 SIR21936517M
UV Lilac/Black / Large 888818581979 90920-5104 SIR21863278L
UV Lilac/Black / X-Large 888818582242 90920-5105 SIR22948861L
UV Lilac/Black / XX-Large 888818582228 90920-5106 SIR23999501L