Specialized Sirrus Comp Disc

2015 UrbanFitness Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 10 34–50t / 12–30t
Gear range: 368%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

12 of 17 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 E5 Premium Aluminum, fully manipulated butted tubing w/ smooth welds, internal cable routing, tapered/integrated headset, fender/rack eyelets Not identified

Suspension

1 part

Fork
- Specialized

Drivetrain

6 parts

Brakes

1 part

Brakes
- Tektro Gemini

Wheels and tires

2 parts

Rims

Front: AXIS 1.0 Disc, Rear: AXIS 1.0 Disc Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Handlebar
- Specialized
Headset
- Cane Creek Headset Bearings
Pedals

Sirrus, 1.5mm Varus angle, nylon body, symmetric alloy cage, low profile bearing system, toe clip capable Not identified
Saddle

Body Geometry Targa Sport, steel rails, 155mm Not identified
Seatpost

Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware Not identified
Stem
- Specialized

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 406mm

Stack 589mm

Wheelbase 1066mm

Head angle 71.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	392	398	406	412	422
Stackmm	552	572	589	614	648
Top tube lengthmm	555	570	580	600	620
Seat tube lengthmm	395	440	485	530	570
Head tube lengthmm	130	150	165	190	225
Head tube angle	70.5°	71°	71.5°	72°	72°
Seat tube angle	73.5°	73.25°	73.5°	73°	73°
Chainstay lengthmm	439	439	439	439	439
Wheelbasemm	1050	1058	1066	1076	1097
Front centermm	562.2	570.7	579.2	589	609.7
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	272.5	272.5	272.5	272.5	272.5
Standover heightmm	706	745	780	814	847
Fork rakemm	51	51	51	51	51
Trailmm	66	63	60	57	57
Stack/reach ratio	1.41	1.44	1.45	1.49	1.54
Suspension and parts
Crank lengthmm	170	170	172.5	175	175
Handlebar widthmm	580	580	600	600	620
Stem lengthmm	75	90	100	100	110
Seatpost lengthmm	300	300	350	350	350

Not published by the manufacturer: Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
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: 12
Largest sprocket: 30
Lowest gear: 32.9 in
Highest gear: 120.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 30c
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

32.9 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2015
Sample: 95 bicycles with this information
Coverage: 87.1% of the class

Highest gear

120.8 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2015
Sample: 95 bicycles with this information
Coverage: 87.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 12.6 km/h
Highest gear: 46.3 km/h

Total gear range 368%

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: 32.9–120.8 gear inches
Class reference (p10–p90): 22.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2015
Lowest gear: 95 bicycles with this information, 87.1% of the class
Highest gear: 95 bicycles with this information, 87.1% 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 2015 builds
Specification	This bicycle Specialized Sirrus Comp Disc	Specialized Sirrus	Specialized Sirrus Comp	Specialized Sirrus Comp Carbon Disc	Specialized Sirrus Elite	Specialized Sirrus Elite Carbon Disc
Frame
Frame material	Aluminum	Aluminum	Aluminum	Carbon	Aluminum	Carbon
Fork material	Carbon	Steel	Carbon	Carbon	Carbon	Carbon
Drivetrain
Front chainrings	2	Not informed	2	2	2	2
Smallest chainring	34	Not informed	34	34	26	34
Largest chainring	50	Not informed	48	50	48	50
Rear sprockets	10	8	10	10	9	9
Smallest sprocket	12	11	11	12	11	11
Largest sprocket	30	32	36	30	32	30
Lowest gear	32.9 in	Not informed	27.4 in	32.9 in	23.6 in	32.9 in
Highest gear	120.8 in	Not informed	126.6 in	120.8 in	126.6 in	131.8 in
Brakes
Brake type	Hydraulic disc	Rim brake	Rim brake	Hydraulic disc	Rim brake	Hydraulic disc
Other specifications
Tire width	30c	32c	30c	30c	30c	30c
Travel	Configuration: Rigid	Configuration: RigidFront: Additional specification: Not available: Yes	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid

Changes since 2014
Specification	2014 Specialized Sirrus Comp Disc	This bicycle Specialized Sirrus Comp Disc
Frame
Fork material	Aluminum	Carbon
Drivetrain
Rear sprockets	9	10
Smallest sprocket	11	12
Largest sprocket	25	30
Lowest gear	39.4 in	32.9 in
Highest gear	131.8 in	120.8 in
Other specifications
Tire width	28c	30c