YCAGEL TG Posted September 24, 2009 Share Posted September 24, 2009 So I noticed today that the tire I had to replace this summer is a different size than the others. Must have been shipped the wrong size and didn't notice. 235-40=17 on three tires 215-45-17 on the front right. So am I going to be replacing diff parts? I feel like such a jackhole. As a car person, I should have noticed this. Link to comment Share on other sites More sharing options...
dudeondacouch Posted September 24, 2009 Share Posted September 24, 2009 I don't have the answer, but you might want to post up your total miles and number of miles since the tire install. And maybe 5MT or 5EAT. Link to comment Share on other sites More sharing options...
sactojesse Posted September 24, 2009 Share Posted September 24, 2009 215/45R17 = 24.6 inch rolling diameter235/40R17 = 24.4 inch rolling diameter Link to comment Share on other sites More sharing options...
dudeondacouch Posted September 24, 2009 Share Posted September 24, 2009 215/45R17 = 24.6 inch rolling diameter 235/40R17 = 24.4 inch rolling diameter Also note... the smaller tires were the ones that were already worn. Link to comment Share on other sites More sharing options...
BigBad Posted September 24, 2009 Share Posted September 24, 2009 So I noticed today that the tire I had to replace this summer is a different size than the others. Must have been shipped the wrong size and didn't notice. 235-40=17 on three tires 215-45-17 on the front right. So am I going to be replacing diff parts? I feel like such a jackhole. As a car person, I should have noticed this. Relative size of the two is pretty close but its not a good idea to have mixed sizes on an awd vehicle. Check out the size comparison here: http://www.miata.net/garage/tirecalc.html Link to comment Share on other sites More sharing options...
YCAGEL TG Posted September 24, 2009 Author Share Posted September 24, 2009 Is .2 inches of rolling diameter enough to cause damage? The tires are not staying on, I will probably just throw on the winters. Thanks for the info so far. Link to comment Share on other sites More sharing options...
JonLGT Posted September 24, 2009 Share Posted September 24, 2009 How many miles have you driven with the tire? Link to comment Share on other sites More sharing options...
YCAGEL TG Posted September 25, 2009 Author Share Posted September 25, 2009 Unfortunate to say, but a better chunk of the summer, probably 3500 or so. And to save the best for last I did an auto-x as well. I'm starting to hate myself for not noticing this. Link to comment Share on other sites More sharing options...
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