spartikus1975

Hey guys so i have been searching the forums and the internet but can't seem to find a clear answer to this question. I have a 2013 audi a5 with 19 inch summer tires. I am in colorado so very soon i need to get some winter tires. I did buy some 17 inch wheels but cant figure out what size tire i should be looking at. i have looked at 225/50/17 or 225/55/17. I like the idea of the bigger side wall on the 225/55/17 but this changes the over diameter of the wheel by about 3/4 inch I am worried about this messing with the differential. is there a recommendation to stick to when upsizing or down sizing wheels. i found a lot of info on people wanting to stagger their tires but not much on just changing the overall diameter from stock. please help thank you so much.

uberwgn

There is no issue changing the rolling diameter of the the tire when you change all four of them.

spartikus1975

Ok cool thank you for your help that is what i really wanted to know if the rolling diameter change would affect the differential or quatrro system.

uberwgn

No, not if all four tires are the same size.

Doc@tirerack

We guarantee 225/50R17 and 245/45R17 for proper load capacity and to get the closest to OE diameter