8 variants · 6 configurations
Officially FEDRO-approved tire sizes for all PORSCHE 911 Speedster variants.
510 CVessence
3 variants
Standard configuration
Front (AV)
245/35 ZR20 XL
Rear (AR)
305/30 ZR20 XL
Option 1
Front (AV)
245/35 R20 91V M+S
Rear (AR)
295/30 R20 97V M+S
408 CVessence
Standard configuration
Front (AV)
235/35 ZR19
Rear (AR)
305/30 ZR19 XL
250 CVessence
Standard configuration
205/50 ZR17
Alternative wheel: 9 x 17" ET 55
Option 1
255/40 ZR17
250 CVessence
Standard configuration
205/50 ZR17
Alternative wheel: 8 x 17" ET 52
Option 1
255/40 ZR17
218 CVessence
Standard configuration
Alternative wheel: 7 x 16" ET 23.3
218 CVessence
Standard configuration
Alternative wheel: 9 x 16" ET 15
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.
