Approved Tires BMW 645Ci Cabrio

1 variant · 1 configuration

Officially FEDRO-approved tire sizes for all BMW 645Ci Cabrio variants.

333.2 CVessence

245/45 R18 96W

Standard configuration

Front + Rear

245/45 R18 96W

Width245 mm

Aspect ratio45%

Wheel8 x 18" ET 14

Offset (ET)14 mm

710 kg max270 km/h

245/50 R17 99H M+S

Width245 mm

Aspect ratio50%

Wheel7.5 x 17" ET 14

Offset (ET)14 mm

775 kg max210 km/hM+S

Option 1

Front (AV)

245/45 R18 96W

Width245 mm

Aspect ratio45%

Wheel8 x 18" ET 14

Offset (ET)14 mm

710 kg max270 km/h

275/40 R18 99W775 kg270 km/h

Alternative wheel: 9 x 18" ET 18

Option 2

Front (AV)

245/40 R19 94W

Width245 mm

Aspect ratio40%

Wheel8.5 x 19" ET 14

Offset (ET)14 mm

670 kg max270 km/h

275/35 R19 96W710 kg270 km/h

Alternative wheel: 9 x 19" ET 18

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.