Specialized Sirrus X 4.0

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 the scientifically tested and ergonomically engineered Shared Platform Body Geometry saddle, handgrips, and pedals. Sirrus X 4.0 has been equipped with the revolutionary Future Shock to eliminate bumps and potholes. Here's to life on two wheels.

Features

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
Wide-range 1x11 SRAM NX shifting delivers precise shifting for the long haul

Technical Specifications

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

Cockpit
Handlebars: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Stem: Future Stem, Comp
Tape: 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

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
Crankset: Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring
Chainrings: 40T
Bottom Bracket: Threaded BSA 68mm, 24mm spindle
Chain: KMC X11, 11-speed w/ Missing Link™

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: 700x28/38mm, 48mm Presta valve

Accessories
Pedals: Specialized Body Geometry Fitness, platform, plastic

Note: Specifications are subject to change without notice