Sirrus
Part No.  

Sirrus

Part No.  
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Sirrus
Overview
Technical Specifications
Geometry
Reviews
The Sirrus provides road bike geometry with flat bar handling so you can ride fast on longer rides, but also be stable and quick in town. The 24-speed drivetrain with wide gearing allows top speed with hill climbing capabilities, too.
  • Sirrus double-wall, machined alloy rims for strength and reliable braking, plus alloy, sealed cassette hub with stainless spokes
  • Specialized Body Geometry Targa Sport saddle has front/rear bumpers for durability and ample padding for comfort
  • Flak Jacket protection and a grooved tread make the Specialized Nimbus tires perfect for city or open road use
  • Body Geometry Targa gel grips alleviate hand pain and tingling fingers for all-day riding comfort
  • A1 Premium Aluminum fully-manipulated frame offers a great ride and versatility, with rack/fender mounts and wide tire clearance
  • Straight blade steel fork with fender mounts gives you all the durability you need to manage potholes and rough roads

Technical Specifications

DRIVETRAIN
CHAIN KMC X8
BOTTOM BRACKET Cartridge bearings, square spindle
CRANKSET Shimano Altus, 8-speed triple, w/ chainguard
FRONT DERAILLEUR Shimano FD-M191
SHIFT LEVERS Shimano EF-51, EZ Fire
CASSETTE Shimano, 8-speed, 11-32
CHAINRINGS 48/38/28, w/ chainguard
REAR DERAILLEUR Shimano Altus, 8-speed
WHEELS
FRONT HUB Double-sealed, ground race, dual-lock nuts w/ 17mm contact side, 5mm QR
REAR HUB Double-sealed, loose ball, dual-lock nuts
INNER TUBES Standard Schrader valve
FRONT TIRE Specialized Nimbus, 26TPI, wire bead, Flak Jacket protection, 700x28c
RIMS Alloy double-wall, CNC sidewalls, 32h
REAR TIRE Specialized Nimbus, 26TPI, wire bead, Flak Jacket protection, 700x28c
COCKPIT
SADDLE Body Geometry Targa Sport, steel rails, 155mm
TAPE Specialized Body Geometry Targa, dual compound
SEATPOST Alloy, 2-bolt, 12.5mm offset, 27.2mm
STEM Alloy, 4-bolt, 20-degree rise, 25.4mm clamp
HANDLEBARS Specialized flat bar, alloy, 6-degree backsweep, 25.4mm
BRAKES
FRONT BRAKE Die-cast, alloy V-brake, 60mm 1pc. pad, linear pull
BRAKE LEVERS Alloy V-brake, two-finger, linear pull
REAR BRAKE Die-cast, alloy V-brake, 60mm 1pc. pad, linear pull
ACCESSORIES
PEDALS Nylon flat
FRAMESET
HEADSET 1-1/8"" FSA integrated cartridge lower, external sealed upper bearings
SEAT BINDER Alloy, 31.8mm
FORK Specialized steel
FRAME Specialized A1 Premium Aluminum, fully-manipulated butted tubing, integrated lower bearing, fender/rack eyelets

Geometry

Geometry Chart

- Geometry

  XS SM MD LG XL
Crank Length 170mm 170mm 175mm 175mm 175mm
Stem Length 75mm 90mm 90mm 100mm 100mm
Handle-Bar Width 580mm 580mm 580mm 580mm 580mm
Wheelbase 1056mm 1065mm 1073mm 1082mm 1103mm
Seat-Tube Length, B-B Center to Top 395mm 440mm 485mm 530mm 570mm
Head-Tube Length 130mm 150mm 165mm 190mm 225mm
Top-Tube Length, Horizontal 555mm 570mm 580mm 600mm 620mm
Front-Center 621mm 629mm 637mm 647mm 667mm
Head-Tube Angle 70.5° 71° 71.5° 72° 72°
Stand-Over Height 716mm 750mm 786mm 821mm 859mm
Fork Rake 51mm 51mm 51mm 51mm 51mm
Trail 70mm 67mm 63mm 60mm 60mm
Chain-Stay Length 445mm 445mm 445mm 445mm 445mm
Seat-Tube Angle 73.5° 73.25° 73.5° 73° 73°
B-B Drop 70mm 70mm 70mm 70mm 70mm
Seat-Post Length 300mm 350mm 350mm 350mm 350mm

Reviews