2018 BMW Alpina B3 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120 on every 2018 trim.

Tires for the 2018 BMW Alpina B3

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

245/30R20 front + 265/30R20 rear Best-rated standard on 2 trims · Europe, Japan

Check price on Amazon · 245/30R20 front Check price on Amazon · 265/30R20 rear
245/35R19 Best-rated optional on 2 trims · Europe, Japan

Check price on Amazon · 245/35R19

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Trims sold in 2018: 2
Generation: F30/F31 sold in 2 market versions
Other years: 2014
2015
2016
2017
2018
2019
2020
2021
All years (1987–2025)

2 trims sold in 2018

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

BMW Alpina B3 F30/F31

2013–2019 2 trims

Europe

1 trim

B3 B3 S 434 hp · N55B30A I6 245/30R20 90Y / 265/30R20 94Y 2 fitments

Generation: F30/F31 · 2013–2019
Market: Europe
Power: 434 hp
Engine: N55B30A I6, Petrol
Center bore: 72.6 mm
Bolt pattern: 5x120
Thread: M12 x 1.5

Check price on Amazon · 245/30R20 Check price on Amazon · 265/30R20 Wheels 20x8 ET36 · 5x120 · 72.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/30R20 90Y	Rim 20x8 ET36 ~~5x120~~	–
Rear265/30R20 94Y	Rim 20x9 ET47 ~~5x120~~	–
Front245/35R19 93W	Rim 19x8 ET36 ~~5x120~~	–
Rear245/35R19 93W	Rim 19x9 ET47 ~~5x120~~	–

How to read 90Y: 90 is the load index (up to 1,323 lb / 600 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET36 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Japan

1 trim

B3 B3 S (ABA-3R30) 434 hp · N55B30A I6 245/30R20 90Y / 265/30R20 94Y 2 fitments

Generation: F30/F31 · 2013–2019
Market: Japan
Power: 434 hp
Engine: N55B30A I6, Petrol
Center bore: 72.6 mm
Bolt pattern: 5x120
Thread: M12 x 1.5

Check price on Amazon · 245/30R20 Check price on Amazon · 265/30R20 Wheels 20x8 ET36 · 5x120 · 72.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/30R20 90Y	Rim 20x8 ET36 ~~5x120~~	–
Rear265/30R20 94Y	Rim 20x9 ET47 ~~5x120~~	–
Front245/35R19 93W	Rim 19x8 ET36 ~~5x120~~	–
Rear245/35R19 93W	Rim 19x9 ET47 ~~5x120~~	–

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.