Specialized Sirrus Sport

Name: Specialized Sirrus Sport
Brand: Specialized

2017 UrbanFitness Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 9 32–48t / 11–34t
Gear range: 464%
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

10 of 19 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 A1 Premium Aluminum, Fitness Geometry, fully-manipulated butted tubing, integrated lower bearing, fender/rack mounts Not identified

Suspension

1 part

Fork

FACT carbon fiber, alloy steerer/crown, post mount disc, Plug + Play fender mount Not identified

Drivetrain

7 parts

Bottom bracket

BB-7420STw/Bolts w/RPM logo Not identified
Cassette
- Shimano 11–34t
Chain
- KMC X9 9 speeds
Crankset
- FSA VERO PRO 1X 48/32t
Front derailleur
- microSHIFT R9
Rear derailleur
- Shimano Alivio RD-M3100 9 speeds
RD-M3100
Shifters
- microSHIFT

Brakes

1 part

Brakes
- Shimano Altus BR-M315
BR-M315

Wheels and tires

4 parts

Rear hub
- Shimano
Rims

Disc, 6061 aluminum double-wall Not identified
Spokes

Stainless, 14g w/self-locking threads Not identified
Tires

Front: Nimbus Reflect, 700x32mm, 26TPI, Flak Jacket protection, Rear: Nimbus Reflect, 700x32mm, 26TPI, Flak Jacket protection Not identified

Cockpit and contact points

5 parts

Handlebar
- Specialized
Pedals
- Specialized
Saddle

Canopy Sport, steel rails Not identified
Seatpost

Alloy, 12mm offset, 2-bolt clamp, 27.2mm Not identified
Stem

Alloy, 4-bolt, 7-degree rise, 31.8mm clamp Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 402mm

Stack 600mm

Wheelbase 1073mm

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	388	394	402	409	418
Stackmm	563	584	600	626	659
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°	73.3°	73.5°	73°	73°
Chainstay lengthmm	445	445	445	445	445
Wheelbasemm	1056	1065	1073	1082	1103
Front centermm	621	629	637	647	667
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	281	281	281	281	281
Standover heightmm	716	750	786	821	859
Fork rakemm	51	51	51	51	51
Trailmm	70	67	64	60	60
Stack/reach ratio	1.45	1.48	1.49	1.53	1.58
Suspension and parts
Crank lengthmm	170	170	172.5	172.5	175
Handlebar widthmm	580	580	600	600	620
Stem lengthmm	80	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: 32
Largest chainring: 48
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 27.3 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 32c
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
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

27.3 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2017
Sample: 159 bicycles with this information
Coverage: 86.8% of the class

Highest gear

126.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2017
Sample: 159 bicycles with this information
Coverage: 86.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.5 km/h
Highest gear: 48.5 km/h

Total gear range 464%

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: 27.3–126.6 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: 2017
Lowest gear: 159 bicycles with this information, 86.8% of the class
Highest gear: 159 bicycles with this information, 86.8% 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 2017 builds
Specification	This bicycle Specialized Sirrus Sport	Specialized Sirrus	Specialized Sirrus Comp Carbon	Specialized Sirrus Comp City	Specialized Sirrus Disc	Specialized Sirrus Elite
Frame
Frame material	Aluminum	Aluminum	Carbon	Aluminum	Aluminum	Aluminum
Fork material	Carbon	Steel	Carbon	Carbon	Steel	Carbon
Drivetrain
Front chainrings	2	3	2	2	3	2
Smallest chainring	32	28	32	32	28	32
Rear sprockets	9	8	10	10	8	9
Largest sprocket	34	32	34	34	32	34
Lowest gear	27.3 in	25.4 in	27.3 in	27.3 in	25.4 in	27.3 in
Brakes
Brake type	Hydraulic disc	Rim brake	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc
Other specifications
Tire width	32c	32c	30c	30c	32c	30c
Bottom bracket standard	Not informed	BSA	Not informed	Not informed	BSA	Not informed

Changes since 2016
Specification	2016 Specialized Sirrus Sport	This bicycle Specialized Sirrus Sport
Frame
Fork material	Aluminum	Carbon
Drivetrain
Front chainrings	3	2
Smallest chainring	26	32
Largest sprocket	32	34
Lowest gear	23.6 in	27.3 in
Brakes
Brake type	Rim brake	Hydraulic disc
Other specifications
Travel	Configuration: Rigid	Configuration: RigidFront: Additional specification: Not available: YesRear: Additional specification: Not available: Yes