Originally Posted by zzzzzeke
Originally Posted by GAMEOVER
255=width of tire
35=height of sidewall
to clarify....255 is the width....
35 is the aspect ratio between width and height
17 is the rim size
Just to Clarify (this is fun)
255 = width of tire in mm. (so a 255 is 10mm wider than a 245)
35 = percentage of width that the height of the side wall is equal to. (so the side wall of the tire is 35% of the 255mm width in this case)
As you go with a wider tire, the apect ratio changes, usually to try to keep the same overall diameter.