2021 BMW Alpina B8 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2021 trim.

Tires for the 2021 BMW Alpina B8

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

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Sold in 2 market versions. Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

2021–2023 2 trims

1 trim

B8 B8 613 hp · 4.4L N63B44 V8 245/35R21 96Y / 285/30R21 100Y 1 fitment

Check price on Amazon · 245/35R21 Check price on Amazon · 285/30R21 Wheels 21x8.5 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/35R21 96Y	Rim 21x8.5 ~~5x112~~	–
Rear285/30R21 100Y	Rim 21x10 ~~5x112~~	–

How to read 96Y: 96 is the load index (up to 1,565 lb / 710 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h).

1 trim

B8 B8 (7BA-8M50) 613 hp · 4.4L N63B44 V8 245/35R21 96Y / 285/30R21 100Y 1 fitment

Check price on Amazon · 245/35R21 Check price on Amazon · 285/30R21 Wheels 21x8.5 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/35R21 96Y	Rim 21x8.5 ~~5x112~~	–
Rear285/30R21 100Y	Rim 21x10 ~~5x112~~	–

How to read 96Y: 96 is the load index (up to 1,565 lb / 710 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h).

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.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.