Which size or configuration labels have geometry for the 2015 Specialized Tarmac Sport?

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

What are the reach and stack of the 2015 Specialized Tarmac Sport 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 Sport?

The head tube angle is 73.5 degrees in size 56.

What does the 2015 Specialized Tarmac Sport ship with?

The stock build includes Shimano 105, Specialized AXIS 2.0, Specialized Axis 1.0, and Specialized Toupe Comp.

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 Specialized Tarmac Sport geometry and specs

Key facts

Brand: Specialized
Model: Tarmac
Model year: 2015
Frame: Sport
Type: Road
Geometry labels: 49, 52, 54, 56, 58, and 61
Drivetrain: Shimano 105
Wheels: Specialized AXIS 2.0
Geometry: Complete for every size
Source: specialized.com
Checked: Oct 22, 2026

Geometry by size

Geometry drawing, size 54, to scale.

2015 Specialized Tarmac Sport 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)	460	490	510	530	550	580
Head tube length(mm)	100	120	140	160	190	210

How to read a geometry chart

Stock build

9 parts

Drivetrain

Shimano 105

Shifter

Shimano 105

DerailleurSpeeds 11

Shimano 105

CassetteSpeeds 11Range 11-28

Shimano 105

ChainSpeeds 11

FSA Gossamer

Crankset

Wheels & Tires

Specialized AXIS 2.0

Wheelset

Specialized Turbo Pro

TireTPI 127 TPI

Brakes

Specialized Axis 1.0

BrakePiston count 1

Seatpost & Saddle

Specialized Toupe Comp

Saddle

Keep your Tarmac Sport 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 Tarmac

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

2017 Specialized Venge Elite
Close on every number both bikes have.
Compare
2015 Specialized Allez Elite
Close on every number both bikes have.
Compare
2015 Specialized Allez E5 Smartweld
Close on every number both bikes have.
Compare
2017 Trek Madone 9.5
Close on every number both bikes have.
Compare

Quick answers

Which size or configuration labels have geometry for the 2015 Specialized Tarmac Sport?: Geometry is listed for 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2015 Specialized Tarmac Sport 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 Sport?: The head tube angle is 73.5 degrees in size 56.
What does the 2015 Specialized Tarmac Sport ship with?: The stock build includes Shimano 105, Specialized AXIS 2.0, Specialized Axis 1.0, and Specialized Toupe Comp.
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.