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Sirrus X 2.0

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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.

Frame Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack and 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

Rear Brake Promax F1 hydraulic disc, flat-mount, 160mm rotor

Shifters Shimano CUES 9-speed with Optical Gear Display

Rear Derailleur Shimano CUES 9-speed

Cassette Shimano CUES CS-LG300-9, 11–46t

Crankset Prowheel alloy

XXS–XS: 165mm

S–M: 170mm

L–XL: 175mm

Chainring 42t narrow-wide steel

Bottom Bracket BSA, square taper, 68mm

Chain KMC eGlide for 11-speed CUES

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 steel, 14g

Front Tyre Pathfinder Wire Bead Fast Gravel 700x40c

Rear Tyre Pathfinder Wire Bead Fast Gravel 700x40c

Tubes Standard 40mm SV, 700x32–50

Handlebar Alloy Mini Rise, 9° backsweep, 15mm rise, 31.8mm clamp

Stem 3D-forged alloy, 31.8mm, 7° rise

Grips Specialized Neutralizer Body Geometry locking grips

Saddle Bridge Sport, steel rails, 155/143mm

Seatpost Alloy, 12mm offset, 2-bolt clamp, 27.2mm

Seat Binder Bolt-type, 31.8mm

Pedals Specialized platform pedals

Weight 12.01 kg / 26 lb 7.6 oz (size Large)

Product ID 293704

Size XXS XS S M L XL
Crank Length 165 165 170 170 175 175
Handlebar Width 680 680 680 680 680 680
Stem Length 60 60 70 80 90 100
Saddle Width 155 155 155 143 143 143
Seatpost Length 300 300 350 350 400 400
Stack 536 555 563 593 608 633
Reach 373 388 393 398 402 414
Head-Tube Length 121 139 147 175 191 217
Head-Tube Angle 69.5° 70° 70° 71° 71° 71°
B-B Height 288 288 288 288 288 288
B-B Drop 70 70 70 70 70 70
Trail 79 76 76 69 69 69
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
Chain-Stay Length 440 440 440 440 440 440
Wheelbase 1036 1053 1061 1067 1076 1096
Top-Tube Length (horizontal) 532 552 560 574 582 602
Bike Stand-Over Height 702 725 755 785 815 837
Seat-Tube Length 360 395 440 470 510 530
Seat-Tube Angle 73.5° 73.5° 73.5° 73.5° 73.5° 73.5°