Specialized Women's Sirrus Step-Through

Name: Specialized Women's Sirrus Step-Through
Brand: Specialized

2019 UrbanFitness Manufacturer page

Last known price: $625

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 3 × 8 28–48t / 11–32t
Gear range: 499%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

11 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 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts Not identified

Suspension

1 part

Fork

Steel, flat-mount disc, 1-1/8" steerer, QR, Plug + Play rack/fender mounts Not identified

Drivetrain

7 parts

Bottom bracket

68mm, square taper, 124.5mm length Not identified
Cassette
- Shimano 11–32t
Chain
- KMC X8 8 speeds
Crankset
- Shimano Tourney FC-TY501 8 speeds 48/38/28t
FC-TY501
Front derailleur
- Shimano Tourney
Rear derailleur
- Shimano Altus RD-M310
RD-M310
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, double-wall alloy, 22mm depth, 21mm internal width, disc-specific, 32h Not identified
Spokes

Stainless, 14g Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Grips

Body Geometry Women's Contour Not identified
Handlebar

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

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

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 383mm

Stack 561mm

Wheelbase 1040mm

Head angle 71.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	373	383	393
Stackmm	536	561	590
Top tube lengthmm	532	549	568
Seat tube lengthmm	400	450	500
Head tube lengthmm	124	146	176
Head tube angle	70°	71°	71°
Seat tube angle	73.5°	73.5°	73.5°
Chainstay lengthmm	440	440	440
Wheelbasemm	1031	1040	1060
Front centermm	601	610	630
Bottom bracket dropmm	70	70	70
Bottom bracket heightmm	275	275	275
Standover heightmm	615	625	625
Fork rakemm	51	51	51
Trailmm	71	65	65
Stack/reach ratio	1.44	1.47	1.50
Suspension and parts
Crank lengthmm	165	170	170
Handlebar widthmm	580	580	600
Stem lengthmm	80	90	100
Seatpost lengthmm	300	350	350

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

Specifications

Frame and fork

Intended fit: womens
Frame material: Aluminum
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 28
Largest chainring: 48
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 25.4 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

25.4 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2019
Sample: 245 bicycles with this information
Coverage: 93.8% of the class

Highest gear

126.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2019
Sample: 245 bicycles with this information
Coverage: 93.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.7 km/h
Highest gear: 48.5 km/h

Total gear range 499%

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: 25.4–126.6 gear inches
Class reference (p10–p90): 21.8–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2019
Lowest gear: 245 bicycles with this information, 93.8% of the class
Highest gear: 245 bicycles with this information, 93.8% 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 2019 builds

Differences across 2019 builds
Specification	This bicycle Specialized Women's Sirrus Step-Through	Specialized Men's Sirrus	Specialized Men's Sirrus Elite Alloy	Specialized Men's Sirrus Elite Carbon	Specialized Men's Sirrus Expert Carbon	Specialized Men's Sirrus Pro Carbon
Frame
Intended fit	womens	Unisex	Unisex	Unisex	Unisex	Unisex
Frame material	Aluminum	Aluminum	Aluminum	Carbon	Carbon	Carbon
Fork material	Steel	Steel	Carbon	Carbon	Carbon	Carbon
Drivetrain
Front chainrings	3	3	2	2	2	2
Smallest chainring	28	28	32	32	32	32
Rear sprockets	8	8	10	10	11	11
Largest sprocket	32	32	34	34	32	32
Lowest gear	25.4 in	25.4 in	27.3 in	27.3 in	29.0 in	29.0 in
Other specifications
Tire width	32c	32c	30c	30c	30c	30c
Bottom bracket standard	Not informed	Not informed	BSA	BSA	BSA	BSA