Different size tyres and quattro
 

Hi gents, I have a tyre size scenario curiosity, I'm interested in switching to tyre size 275/30/20 all round eventually from 275/35/20 mainly for aesthetics but also reducing unsprung weight of wheels by around 4kg per corner. i recently replaced rears so want to know if I could get away with 275/30/20 on the front wheels and 275/35/20 on the rears till the rear 35 profiles run their course, I know there will be speedo error, would different sizes cause an issue with the quattro system with different rotational rates per wheel or should I be fine?

Ah damn I found the answer on another post looks like tyre circumference has to be less than 1% difference, looks like im sticking with standard profile at the moment