Specialized Sirrus 4.0 Features
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 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.
- 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.
Product Specifications
Product Specifications
Bottom Bracket |
Praxis M24, Bsa |
Cassette |
Sunrace Csrs0, 10-speed, 11-32t |
Chain |
Kmc, X10, Ept Anti-corrosion Coating, 10-speed W/ Missing Link™ |
Chainrings |
48/32t |
Crankset |
Praxis Alba M24, Solid Forged Arms, 6061 Outer Ring, Steel Inner Ring, 110 Bcd, 10-speed |
Fork |
Specialized Fact 9r Carbon Monocoque, Flat-mount Disc, 12x100mm Thru-axle, Low Rider Mounts, Plug + Play Fender Mounts, Future Shock 1.5 |
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 |
Front Brake |
Tektro Hd-r280, Hydraulic Disc, Resin Pads, Flat-mount, 160mm |
Front Derailleur |
Microshift Fd-r522, Band-clamp |
Front Hub |
Alloy, 6-bolt Disc, Sealed Cartridge Bearing, High-low Flange, 12x100mm Thru-axle, 28h |
Front Tire |
Roadsport Reflect, Wire Bead, Blackbelt/endurant Casing, 700x32c |
Handlebars |
Double-butted Alloy, 9-degree Backsweep, 31.8mm |
Inner Tubes |
700x28/38mm, 48mm Presta Valve |
Pedals |
Specialized Body Geometry Fitness, Platform, Plastic |
Rear Brake |
Tektro Hd-r280, Hydraulic Disc, Resin Pads, Flat-mount, 140mm |
Rear Derailleur |
Microshift Rd-r55s, Short Cage |
Rear Hub |
Alloy, 6-bolt Disc, Sealed Cartridge Bearings, High-low Flange, 12x142mm Thru-axle, 28h |
Rear Tire |
Roadsport Reflect, Wire Bead, Blackbelt/endurant Casing, 700x32c |
Rims |
700c Disc, Double-wall Alloy, 22mm Depth, 21mm Internal Width, 32h |
Saddle |
Body Geometry Power Sport, Steel Rails |
Seat Binder |
Bolt-type, 31.8mm |
Seatpost |
Alloy, 2-bolt, 14mm Offset, 27.2mm |
Shift Levers |
Microshift, 10-speed |
Spokes |
Stainless, 14g |
Stem |
Future Stem, Comp |
Tape |
Specialized Body Geometry Contour, Lock-on |
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