Specialized Sirrus 4.0 Bike

In-store Exclusive | Call for Details

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 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 itself.
  • 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.

FRAMESET

SWAT

 

Seat Binder

Integrated w/ frame

Frame

Specialized FACT 9r carbon, Fitness Geometry, 12x142mm thru-axle, internal cable routing, flat-mount disc, Plug + Play fender mounts

WHEELS & TIRES

Front Tire

RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c

Rims

700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h

Rear Hub

Alloy, 6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm thru-axle, 28h

Inner Tubes

Presta, 48mm valve

Rear Tire

RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c

Spokes

Stainless, 14g

COCKPIT

SeatPost

Alloy, 12mm offset, 2-bolt clamp, 27.2mm

Saddle

Body Geometry Power Sport, steel rails

Handlebars

Double-butted alloy, 9-degree backsweep, 31.8mm

Tape

Specialized Body Geometry, lock-on, integrated bar ends, hidden 4/5mm hex key

Stem

Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

WHEELS

Front Hub

Alloy, 6-bolt disc, sealed cartridge bearing, high-low flange, 12x100mm thru-axle, 28h

DRIVETRAIN

Chain

KMC X9, 9-speed w/ Missing Link™

Chainrings

50/34T

Rear Derailleur

Shimano Sora, 9-speed

Bottom Bracket

Shimano 68mm threaded

Cassette

Shimano Sora, 9-speed, 11-34t

Front Derailleur

microSHIFT R9, 9-speed, 31.8mm clamp

Shift Levers

microSHIFT, 9-speed

ACCESSORIES

Pedals

Specialized Body Geometry Fitness, platform, plastic

Suspension

Fork

Specialized FACT carbon, 12x100mm thru-axle, flat-mount disc, Plug + Play fender mounts

BRAKES

Rear Brake

Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm

Front Brake

Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm

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