2021 Specialized Sirrus X 5.0 - L Cast Blue/Hyper/Satin Black Reflective
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 also equipped Sirrus X 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 the 4.0.
- Full tubeleless ready Axis wheels with fast-rolling 38c Pathfinder tires plus Future Shock 1.5 for extreme float, lighter weight, and added comfort.
- Wide Range 1x11 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
STEM
Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
TAPE
Specialized Neutralizer, Body Geometry, locking grip
HANDLEBARS
Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
SEATPOST
Alloy, 2-bolt, 14mm offset, 27.2mm
FRONT BRAKE
Shimano BR-MT200, hydraulic disc, 160mm
REAR BRAKE
Shimano BR-MT200, hydraulic disc, 160mm
SHIFT LEVERS
Shimano SLX, 11-speed
REAR DERAILLEUR
Shimano SLX, Shadow Plus, 11-speed
CASSETTE
Sunrace, 11-speed, alloy spider, 11-42t
CHAIN
KMC X11, 11-speed w/ Missing Link™
CRANKSET
Forged aluminum, 2-piece, 24mm spindle, direct-mount chainring
BOTTOM BRACKET
BSA for 24mm spindle
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 TIRE
Pathfinder Pro, 2Bliss Ready, 700x38mm
REAR TIRE
Pathfinder Pro, 2Bliss Ready, 700x38mm
SADDLE
Body Geometry Power Sport, steel rails
INNER TUBES
Presta, 48mm valve
SEAT BINDER
Integrated w/ frame