Which size or configuration labels have geometry for the 2017 Specialized Tarmac Comp Disc?

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

What are the reach and stack of the 2017 Specialized Tarmac Comp Disc in size 56?

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

What is the head tube angle of the 2017 Specialized Tarmac Comp Disc?

The head tube angle is 73.5 degrees in size 56.

What does the 2017 Specialized Tarmac Comp Disc ship with?

The stock build includes Shimano ST-RS685, Specialized AXIS Elite, Shimano BR-785, and Specialized Toupe Comp.

Which years of the Specialized Tarmac are on Quiver?

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

2017 Specialized Tarmac Comp Disc geometry and specs

Key facts

Brand: Specialized
Model: Tarmac
Model year: 2017
Frame: Comp Disc
Type: Road
Geometry labels: 49, 52, 54, 56, 58, and 61
Drivetrain: Shimano Ultegra R6800
Wheels: Specialized AXIS Elite
Geometry: Complete for every size
Source: specialized.com
Checked: Oct 22, 2026

Geometry by size

Geometry drawing, size 54, to scale.

2017 Specialized Tarmac Comp Disc 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
BB height(mm)	270	270	272.5	272.5	274	274
Standover(mm)	730	755	775	795	826	850
Seat tube length(mm)	431	462	481	501	522	553
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

9 parts

Drivetrain

Shimano ST-RS685

Shifter

Shimano Ultegra R6800

Derailleur

Shimano 105 R5800

CassetteSpeeds 11Range 11-28

KMC X-11

ChainSpeeds 11

Shimano Ultegra

CranksetChainring interface Direct Mount

Wheels & Tires

Specialized AXIS Elite

Wheelset

Specialized S-Works Turbo

TireTPI 220 TPI

Brakes

Shimano BR-785

BrakeBrake type hydraulic disc

Seatpost & Saddle

Specialized Toupe Comp

Saddle

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Manufacturer

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Quick answers

Which size or configuration labels have geometry for the 2017 Specialized Tarmac Comp Disc?: Geometry is listed for 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2017 Specialized Tarmac Comp Disc in size 56?: In size 56, reach is 395 mm and stack is 564 mm.
What is the head tube angle of the 2017 Specialized Tarmac Comp Disc?: The head tube angle is 73.5 degrees in size 56.
What does the 2017 Specialized Tarmac Comp Disc ship with?: The stock build includes Shimano ST-RS685, Specialized AXIS Elite, Shimano BR-785, and Specialized Toupe Comp.
Which years of the Specialized Tarmac are on Quiver?: Quiver has the Specialized Tarmac for 2017, 2026, 2020, 2019, 2018, 2016, 2015, 2012, 2011, 2010, 2009, 2008, and 2007.