Specialized Sirrus 2.0

Name: Specialized Sirrus 2.0
Brand: Specialized

2021 UrbanFitness Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 8 30–46t / 11–32t
Gear range: 446%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

9 of 20 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, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts Not identified

Suspension

1 part

Fork

Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release Not identified

Drivetrain

7 parts

Bottom bracket

BSA, square-taper, 68mm Not identified
Cassette
- Shimano 11–32t
Chain
- KMC X8 8 speeds
Crankset
- Shimano Tourney 46/30t
Front derailleur
- Shimano Tourney FD-TY710
FD-TY710
Rear derailleur
- Shimano Acera
Shifters
- Shimano Acera

Brakes

1 part

Brakes
- ProMax

Wheels and tires

5 parts

Front hub

Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h Not identified
Rear hub

Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h Not identified
Rims

700C disc brake, double-wall alloy, 22mm depth, 21mm internal width Not identified
Spokes

Stainless, 14g Not identified
Tires

Front: RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c, Rear: RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c Not identified

Cockpit and contact points

5 parts

Handlebar

Double-butted alloy, 9-degree backsweep, 31.8mm Not identified
Pedals
- Specialized
Saddle

Bridge Sport, Steel rails, 155/143mm Not identified
Seatpost

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

Sizes and geometry

6 sizes Open in the geometry plotter

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

Size SM

Table

Reach 393mm

Stack 562mm

Wheelbase 1061mm

Head angle 70.0°

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 Reach Stack

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	373	388	393	398	402	414
Stackmm	536	555	562	593	608	632
Top tube lengthmm	531	552	559	573	582	601
Seat tube lengthmm	360	395	440	470	510	530
Head tube lengthmm	121	139	147	175	191	217
Head tube angle	69.5°	70°	70°	71°	71°	71°
Seat tube angle	73.5°	73.5°	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	440	440	440	440	440	440
Wheelbasemm	1036	1053	1061	1066	1075	1096
Front centermm	605	622	630	635	645	665
Bottom bracket dropmm	70	70	70	70	70	70
Bottom bracket heightmm	278	278	278	278	278	278
Standover heightmm	692	715	745	775	805	827
Fork rakemm	51	51	51	51	51	51
Trailmm	75	72	72	65	65	65
Stack/reach ratio	1.44	1.43	1.43	1.49	1.51	1.53
Suspension and parts
Crank lengthmm	170	170	170	170	175	175
Handlebar widthmm	580	580	600	600	620	620
Stem lengthmm	70	70	80	90	100	110
Seatpost lengthmm	300	300	350	350	400	400

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: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 27.2 in
Highest gear: 121.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
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

27.2 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2021
Sample: 245 bicycles with this information
Coverage: 92.1% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2021
Sample: 245 bicycles with this information
Coverage: 92.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.4 km/h
Highest gear: 46.4 km/h

Total gear range 446%

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: 27.2–121.3 gear inches
Class reference (p10–p90): 20.6–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2021
Lowest gear: 245 bicycles with this information, 92.1% of the class
Highest gear: 245 bicycles with this information, 92.1% 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 2021 builds
Specification	This bicycle Specialized Sirrus 2.0	Specialized Sirrus 1.0	Specialized Sirrus 2.0 Step Through	Specialized Sirrus 3.0	Specialized Sirrus 3.0 Step Through	Specialized Sirrus 4.0
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Fork material	Steel	Steel	Steel	Carbon	Carbon	Carbon
Drivetrain
Front chainrings	2	2	2	Not informed	2	2
Smallest chainring	30	30	30	Not informed	34	34
Largest chainring	46	46	46	Not informed	50	50
Rear sprockets	8	7	8	9	9	9
Smallest sprocket	11	12	Not informed	11	11	11
Largest sprocket	32	32	Not informed	34	34	34
Lowest gear	27.2 in	27.2 in	Not informed	Not informed	29.0 in	29.0 in
Highest gear	121.3 in	111.2 in	Not informed	Not informed	131.8 in	131.8 in
Brakes
Brake type	Hydraulic disc	Rim brake	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc