2021 BMW Alpina B7 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2021 trim.

Tires for the 2021 BMW Alpina B7

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

255/40R20 front + 295/35R20 rear Best-rated standard on 2 trims · Europe, Japan

Check price on Amazon · 255/40R20 front Check price on Amazon · 295/35R20 rear
255/40R20 front + 285/35R20 rear Best-rated optional on 2 trims · Europe, Japan

Check price on Amazon · 255/40R20 front Check price on Amazon · 285/35R20 rear
255/35R21 front + 295/30R21 rear Best-rated optional on 2 trims · Europe, Japan

Check price on Amazon · 255/35R21 front Check price on Amazon · 295/30R21 rear

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Trims sold in 2021: 2
Generation: G12 sold in 2 market versions
Other years: 2015
2016
2017
2018
2019
2020
2021
2022
All years (2003–2022)

2 trims sold in 2021

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

BMW Alpina B7 G12

2019–2023 2 trims

Europe

1 trim

B7 B7 599 hp · 4.4L N63B44C N63M30A V8 255/40R20 101Y / 295/35R20 105Y 3 fitments

Generation: G12 Facelift · 2019–2023
Market: Europe
Power: 599 hp
Engine: 4.4L N63B44C N63M30A V8, Petrol
Center bore: 66.6 mm
Bolt pattern: 5x112
Thread: M14 x 1.25

Check price on Amazon · 255/40R20 Check price on Amazon · 295/35R20 Wheels 20x8.5 ET25 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/40R20 101Y	Rim 20x8.5 ET25 ~~5x112~~	39 psi
Rear295/35R20 105Y	Rim 20x10 ET41 ~~5x112~~	39 psi
Front255/40R20 101V	Rim 20x8.5 ET25 ~~5x112~~	39 psi
Rear285/35R20 104V	Rim 20x10 ET41 ~~5x112~~	39 psi
Front255/35R21 98Y	Rim 21x8.5 ET25 ~~5x112~~	39 psi
Rear295/30R21 102Y	Rim 21x10 ET41 ~~5x112~~	39 psi

How to read 101Y: 101 is the load index (up to 1,819 lb / 825 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET25 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Japan

1 trim

B7 B7 (7BA-7M50) 599 hp · 4.4L N63B44C N63M30A V8 255/40R20 101Y / 295/35R20 105Y 3 fitments

Generation: G12 Facelift · 2019–2023
Market: Japan
Power: 599 hp
Engine: 4.4L N63B44C N63M30A V8, Petrol
Center bore: 66.6 mm
Bolt pattern: 5x112
Thread: M14 x 1.25

Check price on Amazon · 255/40R20 Check price on Amazon · 295/35R20 Wheels 20x8.5 ET25 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/40R20 101Y	Rim 20x8.5 ET25 ~~5x112~~	39 psi
Rear295/35R20 105Y	Rim 20x10 ET41 ~~5x112~~	39 psi
Front255/40R20 101V	Rim 20x8.5 ET25 ~~5x112~~	39 psi
Rear285/35R20 104V	Rim 20x10 ET41 ~~5x112~~	39 psi
Front255/35R21 98Y	Rim 21x8.5 ET25 ~~5x112~~	39 psi
Rear295/30R21 102Y	Rim 21x10 ET41 ~~5x112~~	39 psi

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.