Gloss Black / Charcoal / Satin Black Reflective
Gloss Cast Lilac / Vivid Coral / Satin Black Reflective
Gloss Forest Green / White Mountains / Satin Black Reflective

2021 Specialized Sirrus



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. This Sirrus features a reliable set of components that are built to withstand years of daily abuse, like comfortable Body Geometry touchpoints and fuss-free mechanical V-brakes. 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 clean internal cable routing delivers a bike that is 1.1lb (.5kg) lighter than previous version.
  • Reflective graphics on frame and tires for maximum visibility.
  • Upright position with Body Geometry touchpoints for comfort and control.



Technical Specifications

FRAME Specialized A1 Premium Aluminum, Fitness Geometry, Butted tubing, Internal Cable Routing, V-Brake, Quick-Release, Plug + Play rack/fender mounts
FORK Hi-Ten steel, V-Brake, Plug + Play fender mounts, low rider rack mounts, quick-release
HANDLEBARS Double-butted alloy, 5-degree backsweep, 25.4mm
STEM 10-degree rise, 25.4mm clamp
TAPE Specialized Body Geometry XCT, lock-on
SADDLE Bridge Sport, Steel rails, 155/143mm
SEATPOST Alloy, 12mm offset, 2-bolt clamp, 27.2mm
SEAT BINDER Bolt-type, 31.8mm
FRONT BRAKE V-brake, linear pull
REAR BRAKE V-brake, linear pull
SHIFT LEVERS Shimano EF500, 7-speed
REAR DERAILLEUR Shimano Altus M310
CASSETTE Shimano HG200, 7-speed, 12-32t
CRANKSET Shimano Tourney, 3-piece, 46/30T
CHAINRINGS 46/36/28T w/chainguard
BOTTOM BRACKET BSA, square-taper, 68mm
CHAIN KMC X8 w/ Missing Link™
RIMS 700C rim brake, double-wall alloy, 22mm depth, 21mm internal width, rim brake
FRONT HUB Alloy, loose ball bearings, quick-release, 32h
REAR HUB Alloy, loose ball bearings, quick-release, 7-speed freehub, 32h
SPOKES Stainless, 14g
FRONT TYRE RoadSport, Wire bead, Blackbelt/Endurant Casing, 700x32c
REAR TYRE RoadSport, Wire bead, Blackbelt/Endurant Casing, 700x32c
INNER TUBES Schrader valve, 40mm
PEDALS Specialized Body Geometry Fitness, platform, plastic


CRANK LENGTH 170mm 170mm 170mm 170mm 175mm 175mm
STEM LENGTH 60mm 60mm 75mm 75mm 90mm 110mm
SEATPOST LENGTH 300mm 300mm 350mm 350mm 400mm 400mm
SADDLE WIDTH 155mm 155mm 155mm 143mm 143mm 143mm
HANDELBAR WIDTH 580mm 580mm 600mm 600mm 620mm 620mm
REACH 373mm 388mm 393mm 398mm 402mm 414mm
STACK 536mm 555mm 562mm 593mm 608mm 632mm
WHEELBASE 1036mm 1053mm 1061mm 1066mm 1075mm 1096mm
BIKE STAND-OVER HEIGHT 692mm 715mm 745mm 775mm 805mm 827mm
HEAD-TUBE LENGTH 121mm 139mm 147mm 175mm 191mm 217mm
FRONT-CENTRE 605mm 622mm 630mm 635mm 645mm 665mm
FORK RAKE/OFFSET 51mm 51mm 51mm 51mm 51mm 51mm
HEAD-TUBE ANGLE 69.5 70 70 71 71 71
TRAIL 75mm 72mm 72mm 65mm 65mm 65mm
CHAIN-STAY LENGTH 440mm 440mm 440mm 440mm 440mm 440mm
BB HEIGHT 278mm 278mm 278mm 278mm 278mm 278mm
SEAT-TUBE ANGLE 73.5 73.5 73.5 73.5 73.5 73.5
FORK LENGTH (FULL) 395mm 395mm 395mm 395mm 395mm 395mm
BB DROP 70mm 70mm 70mm 70mm 70mm 70mm
SEAT-TUBE LENGTH 360mm 395mm 440mm 470mm 510mm 530mm
TOP-TUBE LENGTH (HORIZONTAL) 531mm 552mm 559mm 573mm 582mm 601mm


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