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.
- 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 1×11 SRAM NX shifting delivers precise shifting for the long haul.
Frameset
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
Suspension:
Fork:
- Specialized FACT 9r Carbon Monocoque
- Flat-mount disc
- 12x100mm thru-axle
- Low rider mounts
- Plug + Play fender mounts
- Future Shock 1.5
Brakes
Front Brake:
- Tektro HD-R510, hydraulic disc, 160mm
Rear Brake:
- Tektro HD-R510, hydraulic disc, 160mm
Drivetrain
Shift Levers:
- SRAM NX, 11-speed
Rear Derailleur:
- SRAM NX, 11-speed
Cassette:
- SRAM PG-1130, 11-speed, 11-42t
Chain:
- KMC X11, 11-speed with Missing Link™
Crankset:
- Forged aluminum arms
- 24mm spindle
- Narrow-wide aluminum chainring 40t
- Chainguard
Chainrings:
- 40t with chainguard
Bottom Bracket:
- Threaded BSA 68mm
Wheels & Tires
Rims:
- 700C disc, double-wall alloy
- 22mm depth, 21mm internal width
- 32h
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
Spokes:
- Stainless, 14g
Front Tire:
- Pathfinder Sport, 700x38mm
Rear Tire:
- Pathfinder Sport, 700x38mm
Inner Tubes:
- 700×28/38mm
- 48mm Presta valve
Cockpit
Stem:
- Future Stem, Comp
Handlebars:
- Alloy Mini Rise
- 9-degree backsweep
- 15mm rise
- 31.8mm diameter
Grips:
- Specialized Neutralizer
- Body Geometry
- Locking grip
Saddle:
- Bridge Comp
- Hollow Cr-mo rails
- 155/143mm
Seatpost:
- Alloy, 2-bolt
- 14mm offset
- 27.2mm
Seat Binder:
- Bolt-type
- 31.8mm
Accessories
Pedals:
- Specialized Body Geometry Fitness
- Platform style
- Plastic material
Weight
- Weight: 10.8 kg (23 lb, 13 oz)
- Size: LG



































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