Sirrus Sport Disc
Part No.  

Sirrus Sport Disc

Part No.  51131
Sirrus Sport Disc
Overview
Technical Specifications
Geometry
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The Sirrus Sport Disc 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 hydraulic disc brakes mean you'll have confidence to ride regardless of the weather or what you're carrying on your racks.
  • A1 Premium Aluminum fully-manipulated frame offers a great ride and versatility, with rack/fender mounts and wide tire clearance
  • A1 Premium Aluminum disc fork with Cr-Mo steerer, with fender mounts and ample tire clearance for added versatility
  • Sirrus double-wall rims for strength, plus alloy, sealed cassette hub with stainless spokes
  • Flak Jacket protection and a grooved tread make the Specialized Nimbus tires perfect for city or open road use
  • Triple crankset for 9-speed drivetrain provides gearing for any terrain, chainguard keeps pants clean
  • Specialized Body Geometry Targa Sport saddle has front/rear bumpers for durability and ample padding for comfort

Technical Specifications

Technical Specifications

DRIVETRAIN
CHAIN KMC X9
BOTTOM BRACKET Cartridge bearings, square spindle, capless bolts
CRANKSET SR Suntour XCR, 9-speed, square spindle
FRONT DERAILLEUR Shimano Acera
SHIFT LEVERS Shimano Acera, EZ Fire
CASSETTE Shimano, 8-speed, 11-32
CHAINRINGS 48/36/26, w/ chainguard
REAR DERAILLEUR Shimano Acera, 9-speed
WHEELS
FRONT HUB Disc, double-sealed, ground race, dual-lock nuts w/ 17mm contact side, 5mm QR
REAR HUB Disc, double-sealed, loose ball, dual-lock nuts
INNER TUBES Standard presta valve
FRONT TIRE Specialized Nimbus, 26TPI, wire bead, Flak Jacket protection, 700x28c
RIMS Alloy double-wall, 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, lock-on
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 Tektro HDC-330, hydraulic disc, 160mm rotor
BRAKE LEVERS Tektro, hydraulic lever
REAR BRAKE Tektro HDC-330, hydraulic disc, 160mm rotor
ACCESSORIES
PEDALS Sirrus, 1.5mm Varus angle, nylon body, symmetric alloy cage, low profile bearing system, toe clip capable
FRAMESET
HEADSET 1-1/8"" FSA integrated cartridge lower, external sealed upper bearings
SEAT BINDER Alloy, 31.8mm
FORK A1 Premium Aluminum, Cr-Mo steerer, fender/rack eyelets
FRAME Specialized A1 Premium Aluminum, fully-manipulated butted tubing, integrated lower bearing, fender/rack eyelets
* Specifications are subject to change without notice

Geometry

Geometry Chart

Sirrus - Geometry

  XS SM MD LG XL
Stem Length 75mm 90mm 90mm 100mm 100mm
Crank Length 170mm 170mm 175mm 175mm 175mm
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°
Fork Rake 51mm 51mm 51mm 51mm 51mm
Trail 70mm 67mm 63mm 60mm 60mm
Stand-Over Height 716mm 750mm 786mm 821mm 859mm
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