Which size or configuration labels have geometry for the 2015 Specialized Roubaix SL4 Expert?

Geometry is listed for 49, 52, 54, 56, 58, and 61.

What are the reach and stack of the 2015 Specialized Roubaix SL4 Expert in size 56?

In size 56, reach is 387 mm and stack is 589 mm.

What is the head tube angle of the 2015 Specialized Roubaix SL4 Expert?

The head tube angle is 72.5 degrees in size 56.

What does the 2015 Specialized Roubaix SL4 Expert ship with?

The stock build includes Specialized SL4 FACT, Shimano Ultegra, Fulcrum S4, and Shimano Ultegra.

Which years of the Specialized Roubaix are on Quiver?

Quiver has the Specialized Roubaix for 2015, 2027, 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2014, 2012, 2011, 2010, 2009, 2008, and 2007.

2015 Specialized Roubaix SL4 Expert geometry and specs

Key facts

Brand: Specialized
Model: Roubaix
Model year: 2015
Frame: SL4 Expert
Type: Road
Geometry labels: 49, 52, 54, 56, 58, and 61
Drivetrain: Shimano Ultegra
Wheels: Fulcrum S4
Geometry: Complete for every size
Source: specialized.com
Checked: Sep 5, 2026

Geometry by size

Geometry drawing, size 54, to scale.

2015 Specialized Roubaix SL4 Expert geometry by size
Measurement	49	52	54	56	58	61
Reach(mm)	378	379	380	387	392	398
Stack(mm)	527	546	563	589	621	642
Head tube angle(°)	72	72	72	72.5	72.5	73
Seat tube angle(°)	75.5	74	73.5	73.25	73	72.5
Chainstay length(mm)	412	412	415	415	418	420
Wheelbase(mm)	983	989	1000	1010	1029	1038
Standover(mm)	730	756	776	798	829	851
Seat tube length(mm)	445	475	495	515	540	565
Head tube length(mm)	125	145	165	190	225	245

How to read a geometry chart

Stock build

10 parts

Frame

Specialized SL4 FACT

Frame

Drivetrain

Shifter

Derailleur

Cassette

Chain

Wheels & Tires

Fulcrum S4

Wheelset

Specialized Turbo Pro

Tire

Brakes

Shimano Ultegra

BrakeFluid type MineralCaliper mount Flat Mount

Seatpost & Saddle

Specialized CG-R

Seatpost

Specialized Toupe Expert

Saddle

Keep your Roubaix SL4 Expert in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App Store Free on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Manufacturer

Keep the factory build and your current parts distinct

Bikes to compare with the Roubaix

Same kind of bike with the closest frame angles and proportions. Differences are how each one compares to this bike.

2015 Specialized Secteur Sport Double
Close on every number both bikes have.
Compare
2015 Trek Domane
More upright position.
Compare
2016 Kona Private Jake
Slacker head angle.
Compare
2017 Trek Émonda SL
Steeper head angle.
Compare

Quick answers

Which size or configuration labels have geometry for the 2015 Specialized Roubaix SL4 Expert?: Geometry is listed for 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2015 Specialized Roubaix SL4 Expert in size 56?: In size 56, reach is 387 mm and stack is 589 mm.
What is the head tube angle of the 2015 Specialized Roubaix SL4 Expert?: The head tube angle is 72.5 degrees in size 56.
What does the 2015 Specialized Roubaix SL4 Expert ship with?: The stock build includes Specialized SL4 FACT, Shimano Ultegra, Fulcrum S4, and Shimano Ultegra.
Which years of the Specialized Roubaix are on Quiver?: Quiver has the Specialized Roubaix for 2015, 2027, 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2014, 2012, 2011, 2010, 2009, 2008, and 2007.