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Sirrus 4.0

Sirrus 4.0

We deliver! Just say when and how.

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.

Technical Specifications

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

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

XSSMLXLXXL
Crank Length170mm170mm170mm175mm175mm175mm
Stem Length70mm70mm80mm90mm100mm110mm
Handlebar Width580mm580mm600mm600mm620mm620mm
Seatpost Length300mm300mm350mm350mm400mm400mm
Saddle Width155mm155mm143mm143mm143mm143mm
Stack585mm602mm631mm649mm687mm709mm
Reach355mm371mm384mm386mm398mm410mm
Head-Tube Length125mm143mm169mm186mm223mm246mm
Head-Tube Angle70°70°71°71.5°72°72°
B-B Height275mm275mm275mm275mm275mm275mm
B-B Drop70mm70mm70mm70mm70mm70mm
Trail71mm71mm65mm62mm58mm58mm
Fork Length (full)390mm390mm390mm390mm390mm390mm
Fork Rake/Offset51mm51mm51mm51mm51mm51mm
Front-Center602mm625mm635mm637mm656mm675mm
Chain-Stay Length435mm435mm435mm435mm435mm435mm
Wheelbase1027mm1050mm1060mm1063mm1082mm1101mm
Top-Tube Length (horizontal)532mm554mm573mm580mm603mm628mm
Bike Stand-Over Height714mm756mm788mm813mm849mm875mm
Seat-Tube Length355mm416mm453mm483mm533mm563mm
Seat-Tube Angle73.5°73.5°73.5°73.5°73.5°73°
Geometry

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