2021 Sirrus X 3.0

In stock

Sirrus X is your ticket to riding more, and to places you never imagined possible.

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Full description


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. Here's to your new life on two wheels.

  • Even lighter (1.6 lbs/.8kg) and faster thanks to an added A1 alloy fork.
  • Wide Range 1x9 Microshift Advent shift system gives excellent range with a clutch system to keep the chain on over harsh bumps.
  • More powerful hydraulic brakes and premium 2 piece crank design for enhanced braking power and durability in tough conditions.


FRAME: Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
FORK: A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
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
RIMS: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
INNER TUBES: Presta, 40mm valve
FRONT TYRE: Pathfinder Sport, 700x42mm
REAR TYRE: Pathfinder Sport, 700x42mm
CHAINRINGS: 40T, Narrow-wide Steel
SHIFT LEVERS: microSHIFT Advent, 9-speed
REAR DERAILLEUR: microSHIFT Advent, 1x9 w/ clutch
CASSETTE: microSHIFT Advent, 9-speed, 11-42t
CHAIN: KMC X9, 9-speed w/ Missing Link™
FRONT BRAKE: Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm
REAR BRAKE: Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm
HANDLEBARS: Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
TAPE: Specialized Neutralizer, Body Geometry, locking grip
STEM: Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
SADDLE: Bridge Sport, Steel rails, 155/143mm
SEATPOST: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
SEAT BINDER: Specialized bolt-type, alloy, 31.8mm
PEDALS: Specialized Body Geometry Fitness, platform, plastic
B-B Drop 70 70 70 70 70 70
B-B Height 288 288 288 288 288 288
Bike Stand-Over Height 702 725 755 785 815 837
Chain-Stay Length 440 440 440 440 440 440
Crank Length 165mm 165mm 170mm 170mm 175mm 175mm
Fork Length (full) 395 395 395 395 395 395
Fork Rake/Offset 51 51 51 51 51 51
Front-Center 606 623 631 636 645 665
Handlebar Width 660mm 660mm 660mm 680mm 680mm 680mm
Head-Tube Angle 69.5 70 70 71 71 71
Head-Tube Length 121 139 147 175 191 217
Reach 373 388 393 398 402 414
Saddle Width 155mm 155mm 155mm 143mm 143mm 143mm
Seat-Tube Angle 73.5 73.5 73.5 73.5 73.5 73.5
Seat-Tube Length 360 395 440 470 510 530
Seatpost Length 300mm 300mm 350mm 350mm 400mm 400mm
Stack 536 555 563 593 608 633
Stem Length 60mm 60mm 70mm 80mm 90mm 100mm
Top-Tube Length (horizontal) 532 552 560 574 582 602
Trail 79 76 76 69 69 69
Wheelbase 1036 1053 1061 1067 1076 1096


Size Chart

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