Alpina B5 tire and wheel sizes
The Alpina B5 was approved in Switzerland between 2010 and 2023 with tires from 245/45R18 to 255/35R20 on 18″, 19″, 20″ wheels. The most common sizes are 255/35R20, 285/30R20, 245/40R19. 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 B5 (2017–2023) type ALPINA G30
12 approved versions, e.g. B5 Touring, B5, B5 GT, B5 GT Touring.
Alpina B5 (2010–2016) type ALPINA 5
12 approved versions, e.g. B5 Biturbo, B5 BiturboTouring.
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 24 of 26 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.