Details

SMOOTH, COMFORTABLE, AND EFFICIENT: Specialized 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.

- Future Shock 1.5 delivers 20mm of compliance to give maximum comfort and control over the rough stuff.
- Added Carbon Fork and an A1 SL alloy frame delivers a build 1.6lb (.8kg) lighter than the 3.0 model–no heavy hybrid featuring a mountain style suspension fork comes close.
- Wide-range 1x11 SRAM NX shifting delivers precise shifting for the long haul.

Geometry

Size	XXS	XS	S	M	L	XL
Crank Length	170mm	170mm	170mm	170mm	175mm	175mm
Stem Length	70mm	70mm	80mm	90mm	100mm	110mm
Handlebar Width	580mm	580mm	600mm	600mm	620mm	620mm
Seatpost Length	300mm	300mm	350mm	350mm	400mm	400mm
Saddle Width	155mm	155mm	155mm	143mm	143mm	143mm
Stack	536mm	555mm	562mm	593mm	608mm	632mm
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	278mm	278mm	278mm	278mm	278mm	278mm
B-B Drop	70mm	70mm	70mm	70mm	70mm	70mm
Trail	75mm	72mm	72mm	65mm	65mm	65mm
Fork Length (full)	395mm	395mm	395mm	395mm	395mm	395mm
Fork Rake/Offset	51mm	51mm	51mm	51mm	51mm	51mm
Front-Center	605mm	622mm	630mm	635mm	645mm	665mm
Chain-Stay Length	440mm	440mm	440mm	440mm	440mm	440mm
Wheelbase	1036mm	1053mm	1061mm	1066mm	1075mm	1096mm
Top-Tube Length (horizontal)	531mm	552mm	559mm	573mm	582mm	601mm
Bike Stand-Over Height	692mm	715mm	745mm	775mm	805mm	827mm
Seat-Tube Length	360mm	395mm	440mm	470mm	510mm	530mm
Seat-Tube Angle	73.5°	73.5°	73.5°	73.5°	73.5°	73.5°

Sizing

SIZE	INCHES	CM
XXS	4'8"-4'11"	142-150
XS	4'11"-5'2"	150-158
S	5'1"-5'5"	155-165
M	5'5"-5'9"	165-175
L	5'9"-6'0"	175-183
XL	6'0"-6'4"	183-193
XXL	6'4"-6'6"	193-198

Specs

Frame	Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts
Fork	Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
Rims/Wheels	700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Hubs	Front: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h Rear: Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
Spokes	Stainless, 14g
Tires	Pathfinder Sport, 700x38
Crankset	PROWHEEL, Alloy, 165mm
Chainring	40T
Bottom Bracket	Threaded BSA 68mm, 24mm spindle
Chain	KMC X11, 11-speed w/ Missing Link™
Rear Derailleur	Shimano Cues Shadow RD-U6000, 11-Speed
Rear Cogs	Shimano, CS-LG400-11, Cues, 11-Speed, 11-50T
Shifters	Shimano Cues SL-U6000, 11-Speed
Handlebars	Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Tape/Grips	Specialized Neutralizer, Body Geometry, locking grip
Stem	Future Stem, Comp
Brakes	Tektro HD-R510, hydraulic disc, 160mm
Pedals	Specialized Body Geometry Fitness, Platform, Plastic
Saddle	Power Comp, Hollow Cr-mo rails, 155/143mm
Seat Post	Alloy, 12mm offset, 2-bolt clamp, 27.2mm

* Subject to change without notice.

Part Numbers

Option	UPC	MPN	Store SKU
Silver Dust/Cool Grey / Small	196625208270	92425-5402	210000010834
Silver Dust/Cool Grey / Medium	196625208010	92425-5403	210000010779
Silver Dust/Cool Grey / Large	196625208096	92425-5404	210000010780