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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 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.
Technical Specifications
Frameset
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
Drivetrain
Shift Levers
Shimano Tiagra, 10-speed w/ Optical Gear Display
Front Derailleur
Shimano Tiagra FD-4700, Band-clamp
Rear Derailleur
Shimano Tiagra, 10-speed
Chain
KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
Cassette
Shimano CS-HG500, 10-speed, 11-32t
Crankset
Praxis Alba M24, solid forged arms, 6061 outer ring, steel inner ring, 110 BCD, 10-speed
Chainrings
48/32, chainguard
Bottom Bracket
Praxis M24, BSA
Wheels & Tires
Rims
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Front Hub
Alloy, 6-bolt disc, sealed cartridge bearing, high-low flange, 12x100mm thru-axle, 24h
Rear Hub
Alloy, 6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm thru-axle, 28h
Spokes
Stainless, 14g
Front Tire
RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Rear Tire
RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Inner Tubes
Presta, 48mm valve
Cockpit
Handlebars
Double-butted alloy, 9-degree backsweep, 31.8mm
Stem
Future Stem, Comp
Tape
Specialized Body Geometry Contour, lock-on
Saddle
Bridge Comp, Hollow Cr-mo rails, 155/143mm
SeatPost
Alloy, 2-bolt, 14mm offset, 27.2mm
Seat Binder
Bolt-type, 31.8mm
Brakes
Rear Brake
Shimano BR-MT200, hydraulic disc, 160mm
Front Brake
Shimano BR-MT200, hydraulic disc, 160mm
Accessories
Pedals
Specialized Body Geometry Fitness, platform, plastic
Suspension
Fork
Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
Weight
Weight
10.8kg (23 lb, 13 oz)
Weight Size
LG
* 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
| XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|
| Crank Length | 165mm | 165mm | 170mm | 172.5mm | 172.5mm | 175mm |
| Handlebar Width | 580mm | 580mm | 600mm | 600mm | 620mm | 620mm |
| Stem Length | 60mm | 70mm | 70mm | 80mm | 90mm | 100mm |
| Saddle Width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm |
| Seatpost Length | 300mm | 300mm | 350mm | 350mm | 400mm | 400mm |
| Stack | 587mm | 590mm | 606mm | 635mm | 651mm | 672mm |
| Reach | 355mm | 371mm | 376mm | 382mm | 386mm | 398mm |
| Head-Tube Length | 111mm | 125mm | 143mm | 169mm | 186mm | 208mm |
| Head-Tube Angle | 69.5° | 70° | 70° | 71° | 71° | 71° |
| B-B Height | 284mm | 284mm | 284mm | 284mm | 284mm | 284mm |
| B-B Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
| Trail | 78mm | 75mm | 75mm | 68mm | 68mm | 68mm |
| Fork Length (full) | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
| Fork Rake/Offset | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
| Front-Center | 602mm | 618mm | 629mm | 634mm | 644mm | 663mm |
| Chain-Stay Length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
| Wheelbase | 1033mm | 1049mm | 1060mm | 1065mm | 1074mm | 1093mm |
| Top-Tube Length (horizontal) | 529mm | 549mm | 559mm | 573mm | 581mm | 599mm |
| Bike Stand-Over Height | 700mm | 722mm | 750mm | 778mm | 810mm | 831mm |
| Seat-Tube Length | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
| Seat-Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
Manual Downloads
Rider Reviews
- 4.5
- 2 Reviews