Tire size

Asked by Guru1G5VF Oct 04, 2019 at 12:46 PM about the 2011 Cadillac SRX

Question type: Maintenance & Repair

my tire size is 235/55R20
what other tire sizes will work with my 20'rims on my cadillac?  if any?

1 Answer


There are calculators on the internet to get the same diameter of tire, so it all fits . But rimwidth ideal for 235 is 7.5 inch, you have to look that up, what yours is. 6.5 to 8.5 inch is allowed. If for instance 255( I dont suppose you want to go less then 235) , it has to be 255/50 to get same diameter. For that rimmwidth 7- 8-9 inch is allowed.

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