Which size or configuration labels have geometry for the 2018 Specialized Tarmac Men's Elite?

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

What are the reach and stack of the 2018 Specialized Tarmac Men's Elite in size 56?

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

What is the head tube angle of the 2018 Specialized Tarmac Men's Elite?

The head tube angle is 73.5 degrees in size 56.

What does the 2018 Specialized Tarmac Men's Elite ship with?

The stock build includes Specialized Tarmac SL4, Shimano Ultegra R8000, DT Swiss R460, and Shimano Ultegra R8000.

Which years of the Specialized Tarmac are on Quiver?

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

2018 Specialized Tarmac Men's Elite geometry and specs

Key facts

Brand: Specialized
Model: Tarmac
Model year: 2018
Frame: Men's Elite
Type: Road
Geometry labels: 49, 52, 54, 56, 58, and 61
Drivetrain: Shimano Ultegra R8000
Wheels: DT Swiss R460
Geometry: Complete for every size
Source: specialized.com
Checked: Oct 22, 2026

Geometry by size

Geometry drawing, size 54, to scale.

2018 Specialized Tarmac Men's Elite geometry by size
Measurement	49	52	54	56	58	61
Reach(mm)	386	386	387	395	402	408
Stack(mm)	505	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)	517	537	548	565	583	601
Chainstay length(mm)	405	405	405	405	407	410
Wheelbase(mm)	970	970	977	987	1004	1014
BB drop(mm)	72	72	69	69	68	68
BB height(mm)	270	270	272.5	272.5	274	274
Standover(mm)	730	755	775	795	826	850
Seat tube length(mm)	460	490	510	530	550	580
Fork length(mm)	368	368	368	368	368	368
Head tube length(mm)	100	120	140	160	190	210

How to read a geometry chart

Stock build

10 parts

Frame

Specialized Tarmac SL4

Frame

Drivetrain

Shimano Ultegra R8000

ShifterSpeeds 11

Shimano Ultegra R8000

Derailleur

Shimano 105

CassetteSpeeds 11Range 11-28

KMC X11 EL

ChainSpeeds 11

Praxis Zayante

Crankset

Wheels & Tires

DT Swiss R460

Wheelset

Specialized Espoir Elite

TireTPI 60 TPI

Brakes

Shimano Ultegra R8000

Brake

Seatpost & Saddle

Specialized Toupé Sport

Saddle

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Manufacturer

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Quick answers

Which size or configuration labels have geometry for the 2018 Specialized Tarmac Men's Elite?: Geometry is listed for 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2018 Specialized Tarmac Men's Elite in size 56?: In size 56, reach is 395 mm and stack is 564 mm.
What is the head tube angle of the 2018 Specialized Tarmac Men's Elite?: The head tube angle is 73.5 degrees in size 56.
What does the 2018 Specialized Tarmac Men's Elite ship with?: The stock build includes Specialized Tarmac SL4, Shimano Ultegra R8000, DT Swiss R460, and Shimano Ultegra R8000.
Which years of the Specialized Tarmac are on Quiver?: Quiver has the Specialized Tarmac for 2018, 2026, 2020, 2019, 2017, 2016, 2015, 2012, 2011, 2010, 2009, 2008, and 2007.