hmmm posted by ZXRider on January 04, 2005 at 05:23 AM
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its the sidewall.. i guess thats the term.. and just so you know, that is the middle number in the tire size.. like 255/40/zr17.. 255 being the width.. and 40 meaning 40% of the width is how tall the sidewall will be.. then rating and then diameter of wheel.. but i dunno what kind of pros would come with having a thicker or thinner sidewall up front/out back.. hmm.. i have 255/35 in back and 235/40 up front