Specialized Sirrus Limited

2012 UrbanFitness Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 10 34–50t / 11–32t
Gear range: 428%
Frame: Carbon
Brakes: Rim brake

Sizes

Size guide

49cm
52cm
54cm
56cm
58cm
61cm
64cm

The manufacturer did not publish rider heights for these sizes.

Components

14 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Specialized FACT 8r carbon, FACT IS construction, compact race design w/ Zertz inserts, 1-1/8"" to 1-3/8"" head tube, threaded BB Not identified

Suspension

1 part

Fork
- Specialized

Drivetrain

7 parts

Bottom bracket

Cartridge, external bearing Not identified
Cassette
- SRAM 11–32t
Chain
- KMC X10 10 speeds
X-10
Crankset
- FSA Omega
Front derailleur
- SRAM Apex 10 speeds
Rear derailleur
- SRAM Apex 10 speeds
Shifters
- SRAM SL-700 10-Speed Trigger 10 speeds
SL-700

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro

Wheels and tires

5 parts

Front hub

Sirrus 460V, forged alloy, double sealed, smooth ground race, 24h Not identified
Rear hub

Forged alloy, sealed mechanism, ground races, cassette, custom shape and graphic, 32h Not identified
Rims

Sirrus 460V, 27mm semi-aero, 24/32h Not identified
Spokes

Stainless 2.0mm threadlocked Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Handlebar
- Specialized
Headset

Campy style Integrated semi cartridge bearing, with 15mm alloy conical spacer Not identified
Pedals

Sirrus pedal, 1.5mm Varus Angle, nylon body, symmetric alloy cage, low profile bearing system, toe clip capable Not identified
Saddle
- Ritchey Comp
Seatpost
- Specialized
Stem
- Specialized

Sizes and geometry

7 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 56cm

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Top tube lengthmm	518	537	548	565	582	600	615
Seat tube lengthmm	445	475	495	515	540	565	600
Head tube lengthmm	125	145	165	190	225	245	260
Head tube angle	72°	72°	72°	72.5°	72.5°	73°	73°
Seat tube angle	75.5°	74°	73.5°	73.25°	73°	72.5°	72.5°
Chainstay lengthmm	412	412	415	415	418	420	420
Wheelbasemm	983	989	1000	1010	1029	1038	1053
Front centermm	582	588	595	606	621	628	643
Bottom bracket dropmm	73	73	71.5	71.5	70	70	70
Standover heightmm	730	756	776	798	829	851	877
Fork rakemm	49	49	49	49	49	49	49
Trailmm	59	59	59	56	56	53	53
Suspension and parts
Crank lengthmm	170	170	172.5	172.5	175	175	175
Handlebar widthmm	400	420	420	420	440	440	440
Stem lengthmm	75	90	100	100	110	110	120

Not published by the manufacturer: Reach, Stack, Bottom bracket height, Stack/reach ratio, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 23c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

30.8 gear inches

This value is above the central range for this class.

Cohort: Urban / Fitness Model year: 2012
Sample: 63 bicycles with this information
Coverage: 94.0% of the class

Highest gear

131.8 gear inches

This value is above the central range for this class.

Cohort: Urban / Fitness Model year: 2012
Sample: 63 bicycles with this information
Coverage: 94.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 30.8–131.8 gear inches
Class reference (p10–p90): 23.6–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2012
Lowest gear: 63 bicycles with this information, 94.0% of the class
Highest gear: 63 bicycles with this information, 94.0% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2012 builds

Differences across 2012 builds
Specification	This bicycle Specialized Sirrus Limited	Specialized Sirrus Elite	Specialized Sirrus Pro	Specialized Sirrus Sport
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum
Fork material	Carbon	Carbon	Carbon	Steel
Drivetrain
Front chainrings	2	3	2	3
Smallest chainring	34	26	34	26
Largest chainring	50	48	50	48
Rear sprockets	10	9	10	9
Lowest gear	30.8 in	23.6 in	30.8 in	23.6 in
Highest gear	131.8 in	126.6 in	131.8 in	126.6 in
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	Not informed
Tire width	23c	28c	28c	32c
Travel	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid	Configuration: RigidFront: Additional specification: Not available: Yes