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Specialized Sirrus X 4.0

Specialized Sirrus X 4.0
  • Color: Gloss Ice Papaya/Blaze/Satin Black Reflective
Gloss Ice Papaya/Blaze/Satin Black Reflective
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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 4.0 with the revolutionary Future Shock to take the sting out of bumps and potholes. Here's to your life on two wheels.

- Added Carbon Fork and an A1 SL alloy frame delivers a build 1.6lb (.8kg) lighter than the 3.0 model—no heavy hybrid featuring a mountain style suspension fork comes close.
- Future Shock 1.5 delivers 20mm of compliance to give maximum comfort and control over the rough stuff.
- Wide-range 1x11 Shimano Deore shifting delivers precise shifting for the long haul.

bike frame with labeled dimensions
Bike Sizes:
A. Reach 355mm 371mm 376mm 382mm 386mm 398mm
B. Stack 587mm 590mm 606mm 635mm 651mm 672mm
C. Standover 700mm 722mm 750mm 778mm 810mm 831mm
D. Effective Top Tube 529mm 549mm 559mm 573mm 581mm 599mm
E. Head Tube Angle 69.5° 70° 70° 71° 71° 71°
F. Head Tube Length 111mm 125mm 143mm 169mm 186mm 208mm
G. Seat Tube Angle 73.5° 73.5° 73.5° 73.5° 73.5° 73.5°
H. Seat Tube Length 360mm 395mm 440mm 470mm 510mm 530mm
I. Bottom Bracket Height 284mm 284mm 284mm 284mm 284mm 284mm
J. Bottom Bracket Drop 70mm 70mm 70mm 70mm 70mm 70mm
K. Fork Rake/Offset 51mm 51mm 51mm 51mm 51mm 51mm
L. Trail 78mm 75mm 75mm 68mm 68mm 68mm
M. Wheelbase 1033mm 1049mm 1060mm 1065mm 1074mm 1093mm
N. Front to Center 602mm 618mm 629mm 634mm 644mm 663mm
O. Chainstay Length 440mm 440mm 440mm 440mm 440mm 440mm
Fork Length 395mm 395mm 395mm 395mm 395mm 395mm
Crank Length 165mm 165mm 170mm 170mm 175mm 175mm
Handlebar Width 660mm 660mm 660mm 680mm 680mm 680mm
Stem Length 60mm 60mm 70mm 80mm 90mm 100mm


Frame Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts
Fork Carbon Monocoque, 12x100mm flat thru-axle, flat mount disc, Future Shock 1.5
Rims 700c disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Hubs Front: Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24h
Rear: Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28h
Spokes Stainless, 14g
Tires Pathfinder Sport, 700c x 38
Bottom Bracket Threaded BSA 68mm
Crankset Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring
Chainrings 40T
Shifters Shimano Deore M5100, 11-speed
Rear Derailleur Shimano Deore M5100, SGS, 11-speed
Cassette/Freewheel Shimano Deore M5100, 11-speed, 11-42t
Chain KMC X11, 11-speed w/Missing Link
Brakes Shimano BR-MT200, hydraulic disc, 160mm
Handlebars Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Tape/Grips Specialized Neutralizer, Body Geometry, locking grip
Stem Future Stem, Comp
Seatpost Alloy, 2-bolt, 14mm offset, 27.2mm
Saddle Bridge Comp, Hollow Cr-mo rails, 155/143mm
Pedals Specialized Body Geometry Fitness, platform, plastic

* Subject to change without notice.

Part Numbers

Option UPC MPN
Gloss Ice Papaya/Blaze/Satin Black Reflective / X-Small 888818651825 92421-5101
Gloss Ice Papaya/Blaze/Satin Black Reflective / Small 888818651955 92421-5102