Specialized Sirrus

2015 UrbanFitness Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 8 11–32t
Gear range: 291%
Frame: Aluminum
Brakes: Rim brake

Rider height by size (cm)

Size guide

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

Components

9 of 21 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, fully manipulated butted tubing, integrated lower bearing, fender/rack eyelets Not identified

Suspension

1 part

Fork

Steel, straight blade, rack/fender mounts Not identified

Drivetrain

7 parts

Bottom bracket

Square taper, cartridge bearings Not identified
Cassette
- Shimano
Chain
- KMC X8 8 speeds
Crankset
- Shimano Altus
Front derailleur
- Shimano FD-M191
FD-M191
Rear derailleur
- Shimano Altus RD-M310
RD-M310
Shifters
- Shimano

Brakes

1 part

Brakes

Front: Alloy V-brake, linear pull, w/ alloy lever, Rear: Alloy V-brake, linear pull, w/ alloy lever Not identified

Wheels and tires

5 parts

Front hub

Double-sealed, QR, 32h Not identified
Rear hub

Double-sealed, QR, 32h Not identified
Rims

700c, alloy double-wall, CNC sidewalls, 32h Not identified
Spokes

Stainless, 14g, w/ brass nipple Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Handlebar
- Specialized
Headset
- FSA
Pedals

Nylon flat Not identified
Saddle

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

Alloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm, anti-corrosion hardware Not identified
Stem

Ahead stem, 20-degree rise, Melt-forged alloy, 4-bolt, 25.4mm clamp Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

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

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
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	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
Standover heightmm	716	750	786	821	859
Fork rakemm	51	51	51	51	51
Trailmm	70	67	63	60	60
Suspension and parts
Crank lengthmm	170	170	170	170	175
Handlebar widthmm	580	580	600	600	620
Stem lengthmm	80	80	80	100	100

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: Aluminum
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 32c
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 700c

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	Specialized Sirrus Comp	Specialized Sirrus Comp Carbon Disc	Specialized Sirrus Comp Disc	Specialized Sirrus Elite	Specialized Sirrus Elite Carbon Disc
Frame
Frame material	Aluminum	Aluminum	Carbon	Aluminum	Aluminum	Carbon
Fork material	Steel	Carbon	Carbon	Carbon	Carbon	Carbon
Drivetrain
Rear sprockets	8	10	10	10	9	9
Smallest sprocket	11	11	12	12	11	11
Largest sprocket	32	36	30	30	32	30
Front chainrings	Not informed	2	2	2	2	2
Smallest chainring	Not informed	34	34	34	26	34
Largest chainring	Not informed	48	50	50	48	50
Lowest gear	Not informed	27.4 in	32.9 in	32.9 in	23.6 in	32.9 in
Highest gear	Not informed	126.6 in	120.8 in	120.8 in	126.6 in	131.8 in
Brakes
Brake type	Rim brake	Rim brake	Hydraulic disc	Hydraulic disc	Rim brake	Hydraulic disc
Other specifications
Tire width	32c	30c	30c	30c	30c	30c
Travel	Configuration: RigidFront: Additional specification: Not available: Yes	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid	Configuration: Rigid

Changes since 2014
Specification	2014 Specialized Sirrus	This bicycle Specialized Sirrus
Drivetrain
Front chainrings	3	Not informed
Smallest chainring	28	Not informed
Largest chainring	48	Not informed
Lowest gear	25.4 in	Not informed
Highest gear	126.6 in	Not informed
Other specifications
Tire width	28c	32c
Travel	Configuration: Rigid	Configuration: RigidFront: Additional specification: Not available: Yes