I bought my cayenne 2nd hand it's almost time for a new set of tires. What tires sizes are you using? I was thinking 275/40-20 front 315/35-20 rear for a more sportier look or 265/50-20 front 285/50-20 rear for comfort. Would running 50 series tires cause any problem? Personally I prefer running 50 series it would give me the more forgiveness over bumps and potholes.

 

I run 275 40-20 tires on my Cayenne. I see no reason to change it.