2022 BMW Alpina B4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2022 trim.

Tires for the 2022 BMW Alpina B4

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

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

2022–2024 1 trim

B4 B4 488 hp · 3.0L I6 255/35R20 97Y / 285/30R20 99Y 1 fitment

Check price on Amazon · 255/35R20 Check price on Amazon · 285/30R20 Wheels 20x8.5 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/35R20 97Y	Rim 20x8.5 ~~5x112~~	–
Rear285/30R20 99Y	Rim 20x10 ~~5x112~~	–

How to read 97Y: 97 is the load index (up to 1,609 lb / 730 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.