Quote:
Originally Posted by wdeerfield
keep it to 1%. 235/40/18 on a 8 and 8.5 should have the same diameter i believe. i have 235/40/18 on my 18x8.5s for summer and 225/45/17 on my 17x8s for winter
|
yeah that's what i have, 18x8 front which is fine, its the 18x8,5 rear on this tire size that gives me problems.
when i check the calculator, if i set 8.5 wheel width inches, and 37 mm offset (i set that for both "current" and "new") then choose the original tire size of 255/35/18 and then put the NEW tire size of 235/40/18 and it gives a percent difference of 1.472%. it seems any "original" tire size i put for the rear always goes above 1% when trying to compare it to 235/40/18. Am i doing it wrong? i hope i am..will save me a lot of problems trying to find other tires.