Approved Tires ALPINA B8 GT

1 variant · 1 configuration

Officially FEDRO-approved tire sizes for all ALPINA B8 GT variants.

633.8 CVessence

245/35 ZR21

Standard configuration

Front (AV)

245/35 ZR21

Width245 mm

Aspect ratio35%

Wheel8.5 x 21" ET 28

Offset (ET)28 mm

245/35 R21 M+S

245/40 R20 M+S

Width245 mm

Aspect ratio40%

Wheel8.5 x 20" ET 28

Offset (ET)28 mm

M+S

Option 1

Rear (AR)

285/30 ZR21

Width285 mm

Aspect ratio30%

Wheel10 x 21" ET 44

Offset (ET)44 mm

285/30 R21 M+S

275/35 R20 M+S

Width275 mm

Aspect ratio35%

Wheel10 x 20" ET 44

Offset (ET)44 mm

M+S

Approved tires: official Swiss data

Every vehicle registered in Switzerland has a list of tire sizes approved by the Federal Roads Office (FEDRO). This data comes from type approvals (TARGA) and determines which tire sizes you can legally mount. Our tool displays standard and optional configurations with wheels, offset, load and speed ratings.

Why respect the approval?

Mounting non-approved tires can lead to inspection failure, fines, or even insurance cancellation in case of an accident. Always check that your tires match the approved sizes for your vehicle.