Sirrus X 2.0

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.

Technical Specifications

FRAMESET

Frame

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

SWAT

DRIVETRAIN

Shift Levers

MicroSHIFT, 8-speed

Rear Derailleur

MicroSHIFT Advent 9 Speed, W/O Clutch

Cassette

MicroSHIFT, 8-Speed, 12-42t

Crankset

3 pc, Alloy Forged Arms

Chainrings

40T

Bottom Bracket

BSA, square-taper, 68mm

Chain

KMC X8 w/ Missing Link™

Suspension

Fork

Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release

ACCESSORIES

Pedals

Specialized Body Geometry Fitness, platform, plastic

WHEELS & TIRES

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

Schrader valve, 40mm

COCKPIT

SeatPost

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

Stem

Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

Tape

Specialized Neutralizer, Body Geometry, locking grip

Handlebars

Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm

Saddle

Bridge Sport, Steel rails, 155/143mm

Seat Binder

Bolt-type, 31.8mm

BRAKES

Rear Brake

Promax F1, hydraulic disc, flat-mount, 160mm

Front Brake

Promax F1, hydraulic disc, flat-mount, 160mm

* 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.

Geometry

	XXS	XS	S	M	L	XL
Crank Length	165mm	165mm	170mm	170mm	175mm	175mm
Handlebar Width	660mm	660mm	660mm	680mm	680mm	680mm
Stem Length	60mm	60mm	70mm	80mm	90mm	100mm
Saddle Width	155mm	155mm	155mm	143mm	143mm	143mm
Seatpost Length	300mm	300mm	350mm	350mm	400mm	400mm
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°

Manual Downloads

Specialized Bicycle Owner's Manual (All Languages)

Specialized Bicycle Owner's Manual (Chinese Simplified)

Specialized Bicycle Owner's Manual (English)

Specialized Bicycle Owner's Manual (Japanese)

2021 SIRRUS X - USER MANUAL - ENGLISH

2021 SIRRUS X - USER MANUAL - FRENCH

2021 SIRRUS X - USER MANUAL - GERMAN

2021 SIRRUS X - USER MANUAL - SPANISH

2021 SIRRUS X - USER MANUAL - PORTUGUESE BRAZILIAN

2021 SIRRUS X - USER MANUAL - CHINESE SIMPLIFIED

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