2018 Audi S8 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2018 trim.

Tires for the 2018 Audi S8

Sizes most trims come with first. Open your trim below for its exact size.

275/35R21 Best-rated standard on 1 trim

Check price on Amazon · 275/35R21
275/30R22 Best-rated optional on 1 trim

Check price on Amazon · 275/30R22
285/30R22 Best-rated optional on 1 trim

Check price on Amazon · 285/30R22

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Trims sold in 2018: 1
Generation: D4
Other years: 2014
2015
2016
2017
2018
2019
2020
2021
All years (1996–2027)

1 trim sold in 2018

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Audi S8 D4

2014–2018 1 trim

S8 4.0TFSI plus 605 hp · 4.0L V8 275/35R21 100Y 3 fitments

Generation: D4 Facelift · 2014–2018
Power: 605 hp
Engine: 4.0L V8, Petrol
Center bore: 66.5 mm
Bolt pattern: 5x112
Thread: M14 x 1.5

Check price on Amazon · 275/35R21 Wheels 21x9 ET35 · 5x112 · 66.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
275/35R21 100Y	Rim 21x9 ET35 ~~5x112~~	39 psi
275/30R22 100Y	Rim 22x9.5 ET33 ~~5x112~~	39 psi
285/30R22 99Z	Rim 22x10 ET28 ~~5x112~~	41 psi

How to read 100Y: 100 is the load index (up to 1,764 lb / 800 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET35 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.