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.
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Lightweight A1 Alloy Frame: Clean internal cable routing, 3.5 lbs (1.7 kg) lighter than Crosstrail Hydro.
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1x8 Wide Range Gearing: Hyper intuitive shifting with MicroSHIFT Acolyte — simple, reliable.
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Hydraulic Disc Brakes: Promax F1 flat-mount hydraulic discs for maximum control in any condition.
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Pathfinder 700x42 Tires: Fast rolling with Gripton rubber compound — confidence on pavement and gravel.
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Body Geometry Comfort: Next-level comfort from scientifically tested saddle, handgrips, and pedals.
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Rack & Fender Ready: Plug + Play mounts for versatility — commuter to trail.
With a slightly more upright riding position, a super intuitive one-by drivetrain, and plenty of mounts for racks and fenders — Sirrus X is a dialed option when it's time to hit some gravel.
Lightweight A1 Alloy Frame
A1 Premium Aluminum with clean internal cable routing — 3.5 lbs (1.7 kg) lighter than Crosstrail Hydro.
1x8 MicroSHIFT Acolyte
Hyper intuitive shifting with wide-range 1x8 gearing — simple, reliable, low maintenance.
Promax F1 Hydraulic Disc Brakes
Powerful hydraulic disc brakes for maximum control — stops confident in any condition.
Pathfinder 700x42 Tires
Fast rolling Specialized Pathfinder tires featuring proprietary Gripton rubber compound — float over rough stuff.
Body Geometry Comfort
Next-level comfort from our scientifically tested and ergonomically engineered Shared Platform Body Geometry saddle, handgrips, and pedals.
Gravel-Ready
Slightly more upright position, one-by simplicity, and rack/fender mounts — ready for pavement and beyond.
Frameset
Frame
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts
Seat Binder
Bolt-type, 31.8mm
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, chainguard
Crankset
3-piece, Alloy Forged Arms
Chain
KMC X8 w/ Missing Link™
Shift Levers
MicroSHIFT, 8-speed
Rear Derailleur
MicroSHIFT Acolyte 8-speed, with Clutch
Cassette
MicroSHIFT, 8-Speed, 12-42t
Bottom Bracket
68mm, square taper, 124.5mm length
Wheels & Tires
Rims
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Front Tire
Pathfinder Sport, 700x42mm
Rear Tire
Pathfinder Sport, 700x42mm
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
Inner Tubes
Standard 40mm PV 700x32-50
Cockpit
Stem
3D-forged alloy, 31.8mm, 7-degree rise
Seatpost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Saddle
Bridge Sport, Steel rails, 155/143mm
Handlebars
Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Grips
Specialized Neutralizer, Body Geometry, locking grip
Accessories
Pedals
Specialized Body Geometry Fitness, platform, plastic
Weight
Weight
12.3kg (27 lb, 1.9 oz)