M4ybe

Hello forum.

I have an Audi S7 and have 255/35/20 tires on the wheels (Audi originals). A friend has a spare set of brand new winter tires that I want to buy and I would like to know if they will fit. His winter tires are 255/40/20. Thanks for the help.

M4ybe

Just to add I have a 2013 S7

ben_aip

Hi M4ybe,
I'm pretty sure all model year A7/S7 come with 265/35/20 if they're on 20" wheels, not 255/35/20 which are on A6/S6

Having said that, 255/40/20 may not work, you need 255/40/19

M4ybe

Just spoke to Audi and they said 255/40/20's will work. As long as there isn't a larger variance than 5%.

tenspeed

You can check the difference with this calculator.

https://www.tacomaworld.com/tirecalc...5r20-255-30r20

19hole

Great link...thanks!

josgarc

Personally I think the 255 35 19 tire works best in terms of ride and comfort. Mine. Are hankook v12. Side wall looks less stretched as apposed to 245 version.