2021 Specialized Sirrus 5.0

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Sirrus X is your ticket to riding more, and to places you never imagined possible. It’s a comfortable, capable, “let’s do stuff” kind of bike that will inspire you to ride more than you ever have before. With bigger, confidence inspiring tires, a slightly more upright riding position, a super intuitive one-by drivetrain, and plenty of mounts for racks and fenders —it’s more than just a solid partner on pavement. Sirrus X is a dialed option when it’s time to hit some gravel. We’ve also equipped every Sirrus X with next-level comfort from our scientifically tested and ergonomically engineered Shared Platform Body Geometry saddle, handgrips, and pedals. We equipped Sirrus X 5.0 with tubeless-ready tires that nearly eliminate flats and add more comfort and control by allowing for lower tire pressures, and added the revolutionary Future Shock to take the sting out of bumps and potholes. Here’s to your life on two wheels.

  • Fact 9 Carbon frame and fork brings race-proven performance and is a full 2.2lb (1kg) lighter than Sirrus X 4.0.
  • Full tubeless ready Axis wheels with fast-rolling 38c Pathfinder tires plus Future Shock 1.5 for extreme float, lighter weight, and added comfort.
  • Wide Range 1x12 Shimano SLX shifting delivers lightweight, high-performance gearing.



Technical Specifications

FRAME Specialized FACT 9r carbon, Fitness Geometry, 1x drivetrain, 12x142mm thru-axle, internal cable routing, flat-mount disc, Plug + Play fender mounts
FORK Carbon Monocoque, 12x100mm thru-axle, flat-mount disc, Future Shock 1.5
HANDLEBARS Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
STEM Future Stem, Comp
TAPE Specialized Neutralizer, Body Geometry, locking grip
SADDLE Body Geometry Power Sport, steel rails
SEATPOST Alloy, 2-bolt, 14mm offset, 27.2mm
SEAT BINDER Integrated w/ frame
FRONT BRAKE Shimano BR-MT200, hydraulic disc, 160mm
REAR BRAKE Shimano BR-MT200, hydraulic disc, 160mm
SHIFT LEVERS Shimano SLX M7100, 12-speed
REAR DERAILLEUR Shimano SLX M7100, SGS, 12-speed
CHAIN KMC X12, 12-speed w/ Missing Link™
RIMS 700C disc, double-wall alloy, 30mm depth, 21mm internal width, disc-specific
FRONT HUB Alloy, Center Lock™ disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24h
REAR HUB Alloy, Center Lock™ disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28h
FRONT TYRE Pathfinder Pro, 2Bliss Ready, 700x38mm
REAR TYRE Pathfinder Pro, 2Bliss Ready, 700x38mm
INNER TUBES Presta, 48mm valve
PEDALS Platform, alloy


CRANK LENGTH 165mm 170mm 170mm 175mm 175mm 175mm
STEM LENGTH 60mm 70mm 80mm 90mm 100mm 110mm
SEATPOST LENGTH 300mm 300mm 350mm 350mm 400mm 400mm
SADDLE WIDTH 155mm 155mm 143mm 143mm 143mm 143mm
HANDELBAR WIDTH 660mm 660mm 660mm 680mm 680mm 680mm
REACH 355mm 371mm 384mm 386mm 398mm 410mm
STACK 585mm 602mm 631mm 649mm 687mm 709mm
WHEELBASE 1027mm 1050mm 1060mm 1063mm 1082mm 1101mm
BIKE STAND-OVER HEIGHT 714mm 756mm 788mm 813mm 849mm 875mm
HEAD-TUBE LENGTH 125mm 143mm 169mm 186mm 223mm 246mm
FRONT-CENTRE 602mm 625mm 635mm 637mm 656mm 675mm
FORK RAKE/OFFSET 51mm 51mm 51mm 51mm 51mm 51mm
HEAD-TUBE ANGLE 70 70 71 71.5 72 72
TRAIL 71mm 71mm 65mm 62mm 58mm 58mm
CHAIN-STAY LENGTH 435mm 435mm 435mm 435mm 435mm 435mm
BB HEIGHT 275mm 275mm 275mm 275mm 275mm 275mm
SEAT-TUBE ANGLE              
FORK LENGTH (FULL) 390mm 390mm 390mm 390mm 390mm 390mm
BB DROP 70mm 70mm 70mm 70mm 70mm 70mm
SEAT-TUBE LENGTH 355mm 416mm 453mm 483mm 533mm 563mm
TOP-TUBE LENGTH (HORIZONTAL) 532mm 554mm 573mm 580mm 603mm 628mm


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