Offering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between.
SMOOTH, COMFORTABLE, AND EFFICIENT: Sirrus X provides the smoothest ride in its class. With bigger, confidence-inspiring tires, a slightly more upright riding position, and a super intuitive one-by drivetrain.
RIDER-FIRST ENGINEERED: Like all Specialized performance bikes, the geometry of each frame is uniquely crafted. This means that for every frame, each tube size is specifically selected to achieve the optimal balance of rigidity, weight, and responsiveness to ensure that no matter what size you’re riding, you will experience the world’s best ride.
NIMBLE: Class-leading light-weight, exceptional pedaling efficiency, and steering precision merge for confident, nearly telepathic handling characteristics.
Lightweight A1 Alloy frame with clean internal cable routing, 3.5lbs (1.7kg) lighter than our Crosstrail Hydro model.
Maximum control through intuitive shifting with 1x8 wide range gearing, and powerful hydraulic disc brakes.
Float over rough terrain with fast rolling Specialized Pathfinder 42c tires featuring proprietary Gripton rubber compound.
chnical Specifications
Frameset
Frame
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Suspension
Fork - Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Brakes
Front Brake - Promax F1, hydraulic disc, flat-mount, 160mm
Rear Brake - Promax F1, hydraulic disc, flat-mount, 160mm
Drivetrain
Chainrings - 40T
Bottom Bracket - BSA, square-taper, 68mm
Cassette - microSHIFT Acolyte CS-H084, 12-42t, 8-speed
Crankset - Alloy Forged Arms
Rear Derailleur - microSHIFT Acolyte, 8-speed
Chain - KMC X8 w/ Missing Link™
Shift Levers - microSHIFT Acolyte, 8-speed
Wheels & tires
Rims - 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Rear Hub - Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
Front Hub - Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
Front Tire - Pathfinder Sport, 700x42
Rear Tire - Pathfinder Sport, 700x42
Spokes - Stainless, 14g
Inner Tubes - Standard 40mm SV 700x32-50
Cockpit
Stem - 3D-forged alloy, 31.8mm, 7-degree rise
Handlebars- Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
SeatPost - Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Seat Binder - Bolt-type, 31.8mm
Saddle - Bridge Sport, Steel rails, 155/143mm
Grip - Specialized Neutralizer, Body Geometry, locking grip
