Which size or configuration labels have geometry for the 2015 Specialized Tarmac Disc S-Build?

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

What are the reach and stack of the 2015 Specialized Tarmac Disc S-Build in size 56?

In size 56, reach is 395 mm and stack is 564 mm.

What is the head tube angle of the 2015 Specialized Tarmac Disc S-Build?

The head tube angle is 73.5 degrees in size 56.

What does the 2015 Specialized Tarmac S-Works Disc S-Build ship with?

The stock build includes Roval Rapide CLX 40 SCS.

Which years of the Specialized Tarmac are on Quiver?

Quiver has the Specialized Tarmac for 2015, 2026, 2020, 2019, 2018, 2017, 2016, 2012, 2011, 2010, 2009, 2008, and 2007.

2015

2015 Specialized Tarmac Disc S-Build

Road

The 2015 Specialized Tarmac Disc S-Build sits more aggressive than most road bikes, with a shorter rear center. Reach 386 to 408 mm, stack 504 to 612 mm. The Tarmac S-Works Disc S-Build build comes with Roval Rapide CLX 40 SCS wheels.

Compare with 1,900+ road bikes

Source: specialized.com. Checked Oct 22, 2026.

Key facts

Brand: Specialized
Model: Tarmac
Model year: 2015
Frame: Disc S-Build
Type: Road
Geometry labels: 49, 52, 54, 56, 58, and 61
Wheels: Roval Rapide CLX 40 SCS
Geometry: Complete for every size
Source: specialized.com
Checked: Oct 22, 2026

Geometry by size

Geometry drawing, size 54, to scale.

2015 Specialized Tarmac Disc S-Build geometry by size
Measurement	49	52	54	56	58	61
Reach(mm)	386	386	387	395	402	408
Stack(mm)	504	526	543	564	591	612
Head tube angle(°)	72.25	73	73	73.5	73.5	74
Seat tube angle(°)	75.5	74	73.5	73.25	73	72.5
Effective top tube(mm)	518	537	548	565	582	600
Chainstay length(mm)	405	405	405	405	407	410
Wheelbase(mm)	970	970	978	986	1003	1013
BB drop(mm)	71.5	71.5	69	69	67.5	67.5
Standover(mm)	730	755	775	795	826	850
Seat tube length(mm)	431	462	481	501	522	553
Head tube length(mm)	100	120	140	160	190	210

How to read a geometry chart

Stock build

1 partFrameset only

Wheels & Tires

Roval Rapide CLX 40 SCS

Wheelset

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Quick answers

Which size or configuration labels have geometry for the 2015 Specialized Tarmac Disc S-Build?: Geometry is listed for 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2015 Specialized Tarmac Disc S-Build in size 56?: In size 56, reach is 395 mm and stack is 564 mm.
What is the head tube angle of the 2015 Specialized Tarmac Disc S-Build?: The head tube angle is 73.5 degrees in size 56.
What does the 2015 Specialized Tarmac S-Works Disc S-Build ship with?: The stock build includes Roval Rapide CLX 40 SCS.
Which years of the Specialized Tarmac are on Quiver?: Quiver has the Specialized Tarmac for 2015, 2026, 2020, 2019, 2018, 2017, 2016, 2012, 2011, 2010, 2009, 2008, and 2007.