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Offering an unprecedented combination of comfort, efficiency, and nimble handling,…
We deliver! Just say when and how.
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.
Maximum control through intuitive shifting with 1x8 wide range gearing.
Powerful hydraulic disc brakes.
Float over rough terrain with fast rolling Specialized Pathfinder 42c tires featuring proprietary Gripton rubber compound.
Frame
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Fork
Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Front Brake
Promax F1, hydraulic disc, flat-mount, 160mm
Rear Brake
Promax F1, hydraulic disc, flat-mount, 160mm
Shift Levers
microSHIFT Acolyte, 8-speed
Rear Derailleur
microSHIFT Acolyte, 8-speed
Cassette
microSHIFT Acolyte CS-H084, 12-42t, 8-speed
Chain
KMC X8 w/ Missing Link™
Crankset
Alloy Forged Arms
Chainrings
Narrow-wide chainring w/ chainguard, 40t
Bottom Bracket
BSA, square-taper, 68mm
Rims
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Front Hub
Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
Rear Hub
Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
Spokes
Stainless, 14g
Front Tire
Pathfinder Sport, 700x42mm
Rear Tire
Pathfinder Sport, 700x42mm
Inner Tubes
Standard 40mm SV 700x32-50
Stem
3D-forged alloy, 31.8mm, 7-degree rise
Handlebars
Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Tape
Specialized Neutralizer, Body Geometry, locking grip
Saddle
Bridge Sport, Steel rails, 155/143mm
SeatPost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Seat Binder
Bolt-type, 31.8mm
Pedals
Specialized Body Geometry Fitness, Platform, Plastic
Weight
12.08 kg (26 lb, 10.1 oz)
Weight Size
MD
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
XS | S | M | |
---|---|---|---|
Crank Length | 165mm | 170mm | 170mm |
Handlebar Width | 680mm | 680mm | 680mm |
Stem Length | 60mm | 70mm | 80mm |
Saddle Width | 155mm | 155mm | 143mm |
Seatpost Length | 300mm | 350mm | 350mm |
Front-Center | 628mm | 637mm | 646mm |
Chain-Stay Length | 440mm | 440mm | 440mm |
Stack | 555mm | 563mm | 593mm |
Head-Tube Length | 139mm | 147mm | 175mm |
Fork Length (full) | 395mm | 395mm | 395mm |
Seat-Tube Length | 395mm | 450mm | 500mm |
Head-Tube Angle | 70° | 70° | 71° |
Reach | 393mm | 400mm | 408mm |
Top-Tube Length (horizontal) | 557mm | 567mm | 584mm |
Bike Stand-Over Height | 636mm | 636mm | 641mm |
B-B Height | 288mm | 288mm | 288mm |
Fork Rake/Offset | 51mm | 51mm | 51mm |
Seat-Tube Angle | 73.5° | 73.5° | 73.5° |
B-B Drop | 70mm | 70mm | 70mm |
Trail | 76mm | 76mm | 69mm |
Wheelbase | 1058mm | 1068mm | 1077mm |
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