Alpina B6 tire and wheel sizes

The Alpina B6 was approved in Switzerland between 2012 and 2016 with tires from 245/45R18 to 255/35R20 on 18″, 20″ wheels. The most common sizes are 255/35R20, 245/45R18, 285/30R20. Some versions use different sizes front and rear (staggered fitment).

Sizes differ by engine, trim and market. Confirm with the tire placard (usually on the driver's door jamb), the owner's manual or the vehicle registration papers before buying tires or wheels.

Most common sizes

Alpina B6 (2012–2016) type ALPINA 5

12 approved versions, e.g. B6 Biturbo Cabrio, B6 Biturbo Coupé, B6 BiturboGranCou.

Tire sizeAxleLoad / speedRim and offsetVersions
245/45R18 Front & rear 100V 8Jx18 ET30 10
255/35R20 Front & rear 97W 8.5Jx20 ET33 7
255/35R20 Front 97Y 8.5Jx20 ET33, 9Jx20 ET33 12
255/35R20 Rear 97W 9.5Jx20 ET44 6
285/30R20 Rear 99Y 9.5Jx20 ET44 7
295/30R20 Rear 101Y 10Jx20 ET51 5

How to read this table

Rim and offset uses the European notation: 7Jx17 ET45 is a 7-inch wide, 17-inch diameter wheel with a 45 mm offset. "Versions" is how many approved versions list that size — a rough guide to how common it is. Load / speed is the most frequent service description (for example 91V) among them; your car may require a higher one.

Showing 12 of 14 approvals: rare special versions are left out to keep the page readable. Records were read from the German-language text and checked against the French text; 100 % matched exactly.

Source: Swiss Federal Roads Office (FEDRO/ASTRA), open government data. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.