Tire Sizing
05-14-2003, 04:52 AM
#8
Trophy Fodder Racing
Join Date: Jan 2003
Location: Virginia Beach
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the thing with tire rack saying the best you can do is a 205 is for a reason. The reason is just because the rim is 7.5 inches doesn't mean you still have the tire well space left.
For example my 2003 Honda Civic Si. I can put up to 18 inches rim that is 7.5 inches wide. I can mount a really wide tire on that rim (upwards of 245 although it would look like a balloon instead of a tire). The problem is my tire well won't let me have a tire any wider that 7.5 inches because I will rub on the struts and the lip of the well. So yes my rim can handle more but my car can't unless I do some aftermarket mods to allow for the extra tire width.
And as a side note just because you have a 6.5 inch rim it isn't always the best to have the widest possible tire on that rim. There is a crossover from wo much tire width and to narrow of a rim. My recommendation if tire rack says the widest you can go safely is 215 then only go to 215. If you do go 215 don't go put it on a rim the is more than 1 inch narrower. or 6.5 inches.
I run 15x6 with a 205 Kuhmo. It works great. any more tire width and my sidewalls would roll over to easy and it keeps me in stock class.
If I was running STS I plan on 15X7.5 with a tire width of 225. The max my car and go without rubbing.
Everyday driving I plan on 17X7 and 225 or 215. When hte casj appears.
I hope this helps and stay safe and have fun.
ROb
For example my 2003 Honda Civic Si. I can put up to 18 inches rim that is 7.5 inches wide. I can mount a really wide tire on that rim (upwards of 245 although it would look like a balloon instead of a tire). The problem is my tire well won't let me have a tire any wider that 7.5 inches because I will rub on the struts and the lip of the well. So yes my rim can handle more but my car can't unless I do some aftermarket mods to allow for the extra tire width.
And as a side note just because you have a 6.5 inch rim it isn't always the best to have the widest possible tire on that rim. There is a crossover from wo much tire width and to narrow of a rim. My recommendation if tire rack says the widest you can go safely is 215 then only go to 215. If you do go 215 don't go put it on a rim the is more than 1 inch narrower. or 6.5 inches.
I run 15x6 with a 205 Kuhmo. It works great. any more tire width and my sidewalls would roll over to easy and it keeps me in stock class.
If I was running STS I plan on 15X7.5 with a tire width of 225. The max my car and go without rubbing.
Everyday driving I plan on 17X7 and 225 or 215. When hte casj appears.
I hope this helps and stay safe and have fun.
ROb
05-15-2003, 02:17 PM
#9
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oh no i can fit 255 on my car with out rubbing with rolling the lip and my fender or cut it out i can run 275 so im not to conserdened about hte avaible smae onthte car suspesnion travel more about weither the tire witll fit on the rim but thanks for the advice autox people...