Which size or configuration labels have geometry for the 2021 Specialized Tarmac SL6 Comp?

Geometry is listed for 44, 49, 52, 54, 56, 58, and 61.

What are the reach and stack of the 2021 Specialized Tarmac SL6 Comp in size 54?

In size 54, reach is 384 mm and stack is 544 mm.

What is the head tube angle of the 2021 Specialized Tarmac SL6 Comp?

The head tube angle is 73 degrees in size 54.

What does the 2021 Specialized Tarmac SL6 Comp ship with?

The stock build includes Specialized Tarmac SL6, Shimano Ultegra, DT Swiss R470, and Shimano Ultegra.

Which years of the Specialized Tarmac SL6 are on Quiver?

Quiver has the Specialized Tarmac SL6 for 2021, 2022, 2020, and 2019.

2021 Specialized Tarmac SL6 Comp geometry and specs

Key facts

Brand: Specialized
Model: Tarmac SL6
Model year: 2021
Frame: Comp
Type: Road
Geometry labels: 44, 49, 52, 54, 56, 58, and 61
Drivetrain: Shimano Ultegra R8000
Wheels: DT Swiss R470
Geometry: Complete for every size
Source: specialized.com
Checked: Sep 5, 2026

Geometry by size

Geometry drawing, size 54, to scale.

2021 Specialized Tarmac SL6 Comp geometry by size
Measurement	44	49	52	54	56	58	61
Reach(mm)	365	375	380	384	395	402	408
Stack(mm)	500	514	527	544	565	591	612
Head tube angle(°)	70.5	71.75	72.5	73	73.5	73.5	74
Seat tube angle(°)	76	75.5	74	74	73.5	73.5	73
Chainstay length(mm)	410	410	410	410	410	410	410
Wheelbase(mm)	969	973	975	978	990	1005	1012
BB drop(mm)	74	74	74	72	72	72	72
BB height(mm)	266	266	266	268	268	268	268
Standover(mm)	730	740	755	775	795	826	850
Seat tube length(mm)	435	451	481	499	519	540	570
Fork length(mm)	363	363	363	363	363	363	363
Head tube length(mm)	105	115	126	143	163	190	210

How to read a geometry chart

Stock build

10 parts

Frame

Specialized Tarmac SL6

Frame

Drivetrain

Shimano Ultegra

Shifter

Shimano Ultegra R8000

Derailleur

Shimano Ultegra R8000

Cassette

Shimano Ultegra

Chain

Shimano Ultegra R8000

Crankset

Wheels & Tires

DT Swiss R470

WheelsetInternal rim width 20mmSpoke count 24Not tubeless ready

Specialized Turbo Pro

Tire

Brakes

Shimano Ultegra

BrakeFluid type MineralCaliper mount Flat Mount

Seatpost & Saddle

Specialized Power Sport

SaddleBase / shell Body Geometry

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Manufacturer

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Quick answers

Which size or configuration labels have geometry for the 2021 Specialized Tarmac SL6 Comp?: Geometry is listed for 44, 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2021 Specialized Tarmac SL6 Comp in size 54?: In size 54, reach is 384 mm and stack is 544 mm.
What is the head tube angle of the 2021 Specialized Tarmac SL6 Comp?: The head tube angle is 73 degrees in size 54.
What does the 2021 Specialized Tarmac SL6 Comp ship with?: The stock build includes Specialized Tarmac SL6, Shimano Ultegra, DT Swiss R470, and Shimano Ultegra.
Which years of the Specialized Tarmac SL6 are on Quiver?: Quiver has the Specialized Tarmac SL6 for 2021, 2022, 2020, and 2019.