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.
SWAT
Frame:
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Chainrings:
40T
Cassette:
Shimano Deore, 10spd, 11-42t
Rear Derailleur:
Shimano Deore M4120, SGS, 10-speed
Shift Levers:
Shimano Deore M4100, 10-speed
Bottom Bracket:
Threaded BSA 68mm, 24mm spindle
Crankset:
Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide steel chainring
Chain:
KMC X10, 10-speed w/ reusable Missing Link™
SeatPost:
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Handlebars:
Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Seat Binder:
Bolt-type, 31.8mm
Stem:
Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Saddle:
Bridge Sport, Steel rails, 155/143mm
Tape:
Specialized Neutralizer, Body Geometry, locking grip
Rear Brake:
Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm
Front Brake:
Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm
Inner Tubes:
Standard 40mm PV 700x32-50
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
Rims:
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Spokes:
Stainless, 14g
Front Tire:
Pathfinder Sport, 700x42
Rear Tire:
Pathfinder Sport, 700x42
Fork:
A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Pedals:
Specialized Body Geometry Fitness, platform, plastic
* 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.
| XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|
| Crank Length | 165mm | 165mm | 170mm | 170mm | 175mm | 175mm |
| Seatpost Length | 300mm | 300mm | 350mm | 350mm | 400mm | 400mm |
| Handlebar Width | 660mm | 660mm | 660mm | 680mm | 680mm | 680mm |
| Stem Length | 60mm | 60mm | 70mm | 80mm | 90mm | 100mm |
| Saddle Width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm |
| Stack | 536mm | 555mm | 563mm | 593mm | 608mm | 633mm |
| Reach | 373mm | 388mm | 393mm | 398mm | 402mm | 414mm |
| Head-Tube Length | 121mm | 139mm | 147mm | 175mm | 191mm | 217mm |
| Head-Tube Angle | 69.5° | 70° | 70° | 71° | 71° | 71° |
| B-B Height | 288mm | 288mm | 288mm | 288mm | 288mm | 288mm |
| B-B Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
| Trail | 79mm | 76mm | 76mm | 69mm | 69mm | 69mm |
| Fork Length (full) | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
| Fork Rake/Offset | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
| Front-Center | 606mm | 623mm | 631mm | 636mm | 645mm | 665mm |
| Chain-Stay Length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
| Wheelbase | 1036mm | 1053mm | 1061mm | 1067mm | 1076mm | 1096mm |
| Top-Tube Length (horizontal) | 532mm | 552mm | 560mm | 574mm | 582mm | 602mm |
| Bike Stand-Over Height | 702mm | 725mm | 755mm | 785mm | 815mm | 837mm |
| Seat-Tube Length | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
| Seat-Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
