Fiji ST Posted July 3, 2012 Report Share Posted July 3, 2012 I am about to buy some new tires and have a quick question as I don't know if changing a size will make a difference. The wheels are 17x7, 42mm backspacing, with 215/45-17 tires on there now. Would it be a bad decision to go to a 205/50-17? Quote Link to comment Share on other sites More sharing options...
TTQ B4U Posted July 3, 2012 Report Share Posted July 3, 2012 I am about to buy some new tires and have a quick question as I don't know if changing a size will make a difference. The wheels are 17x7, 42mm backspacing, with 215/45-17 tires on there now. Would it be a bad decision to go to a 205/50-17? is this for your mazda 3? my winter tires on the MS3 is 205/50-17. let me know if you need a winter set. Quote Link to comment Share on other sites More sharing options...
M0nk3y Posted July 3, 2012 Report Share Posted July 3, 2012 Any reason why you're stepping down to 205? Quote Link to comment Share on other sites More sharing options...
Fiji ST Posted July 3, 2012 Author Report Share Posted July 3, 2012 Long story short, my brother has a set of Cooper 205/50 sitting in his garage brand new that I can probably get for cheap (he won them). I didn't know if it would be okay to go to that. I'm not really wanting to give up performance, but for the price..... Quote Link to comment Share on other sites More sharing options...
BigOxley Posted July 3, 2012 Report Share Posted July 3, 2012 slightly taller. will show a lower mph than actual. possible better gas mileage. Quote Link to comment Share on other sites More sharing options...
TurboRust Posted July 3, 2012 Report Share Posted July 3, 2012 slightly taller. will show a lower mph than actual. possible better gas mileage. 205-50 is the stock size for the 3.. I see no issues with it. Quote Link to comment Share on other sites More sharing options...
Fiji ST Posted July 3, 2012 Author Report Share Posted July 3, 2012 205-50 is the stock size for the 3.. I see no issues with it. Slightly larger wheels with a different offset. Quote Link to comment Share on other sites More sharing options...
M0nk3y Posted July 3, 2012 Report Share Posted July 3, 2012 Easiest way is to measure your gap with oem wheels and that offset. Then simply compute the difference w/the new wheels Quote Link to comment Share on other sites More sharing options...
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