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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 an alloy frame and steel fork construction, as well as reliable MicroSHIFT 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.
Lightweight A1 Alloy frame with 42c tires clearance, clean internal cable routing and mounting points for a range of accessories give maximum flexibility.
Intuitive and easy to use MicroSHIFT 2x8 wide range shifting.
Powerful hydraulic disc bakes for safety and control.
Specifications
Frameset
Frame
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Suspension
Fork
Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Cockpit
Stem
3D-forged alloy, 31.8mm, 7-degree rise
SeatPost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Seat Binder
Bolt-type, 31.8mm
Saddle
Bridge Sport, Steel rails, 155/143mm
Handlebars
Double-butted alloy, 9-degree backsweep, 31.8mm
Tape
Specialized Body Geometry Contour, lock-on
Brakes
Rear Brake
Promax F1, hydraulic disc, flat-mount, 140mm
Front Brake
Promax F1, hydraulic disc, flat-mount, 160mm
Drivetrain
Chainrings
34T
Bottom Bracket
BSA, square-taper, 68mm
Crankset
Forged aluminum arms, 3-piece, 46/30T
Chain
KMC X8 w/ Missing Link™
Front Derailleur
MicroSHIFT FD-R252, Band-clamp
Cassette
MicroSHIFT H081, 8-speed, 11-32t
Shift Levers
Shimano Acera, 8-speed
Rear Derailleur
Shimano Acera, 8-speed
Wheels & tires
Rims
700C disc brake, double-wall alloy, 22mm depth, 21mm internal width
Rear Hub
Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
Front Hub
Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
Rear Tire
RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Front Tire
RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Wheels
Inner Tubes
Schrader valve, 40mm
Spokes
Stainless, 14g
Accessories
Pedals
Specialized Body Geometry Fitness, platform, plastic