Specialized · Sirrus

Sirrus X 1.0 Step-Through

2026

$699.99

Manufacturer price · US market. Not a local price.

Specialized Sirrus X 1.0 Step-Through
3D-forged alloyHandlebar
Bridge SportSaddle
Specialized A1 Premium AluminumFrame
Hi-Ten steelFork
Lee ChiBrakes
Shimano Acera · 7 speedsDrivetrain
Pathfinder Wirebead Fast Gravel · 40 mmTyres

Tap a number to see the part.

3D-forged alloy

Handlebar

The handlebar and stem are where your hands steer the bike. Their width and length set how upright or stretched out you sit.

Bridge Sport

Saddle

The saddle and seatpost carry your weight. The height of the seatpost sets your pedalling position.

Specialized A1 Premium Aluminum

Frame

The frame is the bike's backbone: every other part is fixed to it. Its material and shape decide its weight and how it feels to ride.

Hi-Ten steel

Fork

The fork holds the front wheel. A suspension fork absorbs bumps at the front; its travel is how far it can compress.

Lee Chi

Brakes

Brakes slow the bike. Disc brakes squeeze a rotor fixed to the wheel hub; rim brakes squeeze the wheel rim itself.

Shimano Acera · 7 speeds

Drivetrain

The drivetrain turns your pedalling into motion: the cranks, the chain, the cassette and the derailleur that changes gear.

Pathfinder Wirebead Fast Gravel · 40 mm

Tyres

Tyres are the bike's only contact with the ground. Their width and tread decide grip, comfort and rolling speed.

© Specialized Bicycle Components

Equipment

Partial coverageChecked: August 25, 2026Manufacturer page
Rear derailleur brand
Shimano
Source text
  • “Shimano Acera, 8-speed” — Rear Derailleur
Front brake type
Mechanical disc
Source text
  • “Lee Chi, Mechanical Disc” — Front Brake
Rear brake type
Mechanical disc
Source text
  • “Lee Chi, Mechanical Disc” — Rear Brake
Front tyre width
40 mm
Source text
  • “Pathfinder Wirebead Fast Gravel 700X40C” — Front Tire
Rear tyre width
40 mm
Source text
  • “Pathfinder Wirebead Fast Gravel 700X40C” — Rear Tire
Frame material
Aluminium
Source text
  • “Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts” — Frame
Cassette speeds
7
Source text
  • “microSHIFT CS-H074, 12-40t, 7-Speed” — Cassette
Cassette teeth
12/40
Source text
  • “microSHIFT CS-H074, 12-40t, 7-Speed” — Cassette
Chainring teeth
42
Source text
  • “Narrow Wide Steel 42T” — Chainrings

Components

Crank lengthM
170mm
Frame
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Crank lengthXS
165mm
Crank lengthS
165mm
Handlebar widthS
660mm
Fork
Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Handlebar widthXS
660mm
Handlebar widthM
660mm
Stem lengthS
70mm
Front brake
Lee Chi, Mechanical Disc
Stem lengthXS
70mm
Stem lengthM
80mm
Saddle widthS
155mm
Rear brake
Lee Chi, Mechanical Disc
Saddle widthXS
155mm
Saddle widthM
143mm
Seatpost lengthS
300mm
Shift levers
Shimano Altus SL-M315-7R, 7-Speed
Seatpost lengthXS
300mm
Seatpost lengthM
350mm
Rear derailleur
Shimano Acera, 8-speed
Cassette
microSHIFT CS-H074, 12-40t, 7-Speed
Chain
KMC X8 w/ Missing Link™
Crankset
Prowheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm
Chainrings
Narrow Wide Steel 42T
Bottom bracket
Square-tapered, 68mm
Rims
700C disc brake, double-wall alloy, 22mm depth, 21mm internal width
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, 36h, 10x135mm
Spokes
Stainless, 14g
Front tyre
Pathfinder Wirebead Fast Gravel 700X40C
Rear tyre
Pathfinder Wirebead Fast Gravel 700X40C
Inner tubes
Standard 40mm SV 700x32-50
Stem
3D-forged alloy, 31.8mm, 7-degree rise
Handlebar
Specialized, alloy, 15-degree backsweep, 46mm rise, 31.8mm
Grip
Specialized Neutralizer, Body Geometry, locking grip
Saddle
Bridge Sport, Steel rails, 155/143mm
Seatpost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Seatpost clamp
Bolt-type, 31.8mm
Pedals
Specialized, platform
Product ID
293703
Weight
11.72 kg (25 lb, 13.4 oz)
Size used for weighing
MD

Geometry

Frames drawn: Specialized Sirrus X 1.0 Step-Through · XS.
Specialized Sirrus X 1.0 Step-Through · XS
MeasureXSSM
Wheels700c700c700c
555 mm563 mm593 mm
393 mm400 mm408 mm
139 mm147 mm175 mm
71°70°70°
288 mm288 mm288 mm
70 mm70 mm70 mm
76 mm76 mm69 mm
Fork Length (full)395 mm395 mm395 mm
51 mm51 mm51 mm
628 mm637 mm646 mm
440 mm440 mm440 mm
1,058 mm1,068 mm1,077 mm
557 mm567 mm584 mm
636 mm636 mm641 mm
395 mm450 mm500 mm
73.5°73.5°73.5°

Similar bikes

Similar bicycles: same category and type, comparable US MSRP

How we choose
  • Same category and electric or non-electric type
  • US MSRP ratio no greater than 1.3
  • Other families, ordered by price and stack/reach proximity

Manufacturer suggested retail prices are for the US market in USD. They are not local retail prices.

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