Sirrus X 2.0 Step-Through

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.

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

Suspension

Fork

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

Cockpit

SeatPost

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

Stem

3D-forged alloy, 31.8mm, 7-degree rise

Tape

Specialized Neutralizer, Body Geometry, locking grip

Handlebars

Alloy Mini Rise, 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

Drivetrain

Shift Levers

microSHIFT Acolyte, 8-speed

Rear Derailleur

microSHIFT Acolyte, 8-speed

Cassette

microSHIFT Acolyte CS-H084, 12-42t, 8-speed

Chainrings

Narrow-wide chainring w/ chainguard, 40t

Crankset

Alloy Forged Arms

Bottom Bracket

BSA, square-taper, 68mm

Chain

KMC X8 w/ Missing Link™

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

Standard 40mm SV 700x32-50

Accessories

Pedals

Specialized Body Geometry Fitness, platform, plastic

Weight

12.08 kg (26 lb, 10.1 oz)

Weight Size

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

	XS	S	M
Crank Length	165mm	170mm	170mm
Handlebar Width	680mm	680mm	680mm
Stem Length	60mm	70mm	80mm
Saddle Width	155mm	155mm	143mm
Seatpost Length	300mm	350mm	350mm
Front-Center	628mm	637mm	646mm
Chain-Stay Length	440mm	440mm	440mm
Stack	555mm	563mm	593mm
Head-Tube Length	139mm	147mm	175mm
Fork Length (full)	395mm	395mm	395mm
Seat-Tube Length	395mm	450mm	500mm
Head-Tube Angle	70°	70°	71°
Reach	393mm	400mm	408mm
Top-Tube Length (horizontal)	557mm	567mm	584mm
Bike Stand-Over Height	636mm	636mm	641mm
B-B Height	288mm	288mm	288mm
Fork Rake/Offset	51mm	51mm	51mm
Seat-Tube Angle	73.5°	73.5°	73.5°
B-B Drop	70mm	70mm	70mm
Trail	76mm	76mm	69mm
Wheelbase	1058mm	1068mm	1077mm