The new Specialized Sirrus X 4.0 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 the pavement.
The Sirrus X is a dialled option when it’s time to hit some gravel. Specialized has equipped the Sirrus X 4.0 with next-level comfort from their scientifically tested and ergonomically engineered Shared Platform Body Geometry saddle, handgrips, and pedals.
They also 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.
Sirrus X 4.0 Highlights
- Future Shock 1.5 delivers 20mm of compliance to give maximum comfort and control over the rough stuff.
- 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.
- Wide range 1x11 Shimano Deore shifting delivers precise shifting for the long haul.
Sirrus X 4.0
Gloss Smoke (92421-50)
Specialized A1 SL Premium Aluminium, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts
Carbon Monocoque, 12x100mm flat thru-axle, flat mount disc, Future Shock 1.5
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
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Pathfinder Sport, 700x38mm
Forged aluminium arms, 2-piece, 24mm spindle, Narrow-wide Aluminium chainring
Threaded BSA 68mm
Shimano Deore M5100, 11-speed
Shimano Deore M5100, SGS, 11-speed
Shimano Deore M5100, 11-speed, 11-42t
KMC X11, 11-speed w/ Missing Link™
Shimano BR-MT200, hydraulic disc, 160mm rotors
Stout Mini Rise, alloy, 9-degree back sweep, 15mm rise, 31.8mm
Specialized Neutralizer, Body Geometry, locking grip
Future Stem, Comp
Bridge Comp, Hollow Cr-mo rails, 155/143mm
Alloy, 2-bolt, 14mm offset, 27.2mm
Specialized Body Geometry Fitness, platform, plastic
Whilst we do actively try to keep on top of all the details, manufacturers do occasionally change model specifications, so anything detailed above is subject to change.
Sirrus Size Guide
||155 - 165
||5'1" - 5'5"
||165 - 175
||5'5" - 5'9"
||175 - 183
||5'9" - 6'0"
||183 - 193
||6'0" - 6'4"
||191 - 198
||6'3" - 6'6"