10 variants · 7 configurations
Officially FEDRO-approved tire sizes for all BMW 420i Cabrio variants.
183.6 CVessence
Standard configuration
Front (AV)
225/35 R20 90Y
225/40 R19 89Y
225/45 R18 91Y
Option 1
Rear (AR)
255/30 R20 92Y
255/35 R19 92Y
255/40 R18 95Y
Option 2
Front + Rear
225/45 R18 95Y
183.6 CVessence
4 variants
Standard configuration
225/50 R17 94W
183.6 CVessence
Standard configuration
Front (AV)
225/35 R20 90Y
225/40 R19 89Y
225/45 R18 91Y
Option 1
Rear (AR)
255/30 R20 92Y
255/35 R19 92Y
255/40 R18 95Y
Option 2
Front + Rear
225/45 R18 95Y
225/50 R17 94W
225/55 R16 95H M+S
183.6 CVessence
Standard configuration
Front (AV)
225/35 R20 90Y
225/40 R19 89Y
225/45 R18 91Y
Option 1
Rear (AR)
255/30 R20 92Y
255/35 R19 92Y
255/40 R18 95Y
Option 2
Front + Rear
225/45 R18 95Y
225/50 R17 94W
183.6 CVessence
Standard configuration
Front (AV)
225/35 R20 90Y
225/40 R19 89Y
225/45 R18 91Y
Option 1
Rear (AR)
255/30 R20 92Y
255/35 R19 92Y
255/40 R18 95Y
Option 2
Front + Rear
225/45 R18 95Y
225/50 R17 94W
225/55 R16 95H M+S
183.6 CVessence
Standard configuration
Front (AV)
225/35 R20 90Y
225/40 R19 89Y
225/45 R18 91Y
Option 1
Rear (AR)
255/30 R20 92Y
255/35 R19 92Y
255/40 R18 95Y
Option 2
Front + Rear
225/45 R18 95Y
225/50 R17 94W
183.6 CVessence
Standard configuration
Front (AV)
225/35 R20 90Y
225/40 R19 89Y
225/45 R18 91Y
Option 1
Rear (AR)
255/30 R20 92Y
255/35 R19 92Y
255/40 R18 95Y
Option 2
Front + Rear
225/45 R18 95Y
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.
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.
