Cal Club Autocross Forums

Team, I need help. Bought a set of Kumho XS for my Vette. Are they unidirectional? I don't see anything on the sidewall that points to a direction, but it seems they want to be? For all the information Tire Rack provides they do not tell you if a tire is unidirectional or how you determine which is left side /right side if they are?

Thanks for the help.

If I'm not mistaken, one of the sides is labeled "Outside".

You can clearly see the outside label in this photo: http://www.tirerack.com/tires/BigPic.js ... l=Ecsta+XS" onclick="window.open(this.href);return false;

Jeff Stuart wrote:If I'm not mistaken, one of the sides is labeled "Outside".

You can clearly see the outside label in this photo: http://www.tirerack.com/tires/BigPic.js ... l=Ecsta+XS" onclick="window.open(this.href);return false;

Yep your right, they are asymetrical, but I was expecting like many of Kumho's tires they are unidirectional, so there would be an arrow pointing the direction of travel. I don't see an arrow.

Arthur Grant wrote:

Jeff Stuart wrote:If I'm not mistaken, one of the sides is labeled "Outside".

You can clearly see the outside label in this photo: http://www.tirerack.com/tires/BigPic.js ... l=Ecsta+XS" onclick="window.open(this.href);return false;

Yep your right, they are asymetrical, but I was expecting like many of Kumho's tires they are unidirectional, so there would be an arrow pointing the direction of travel. I don't see an arrow.

Yeah, they're not directional. It's probably not even a huge deal if you mount them inside out. You might be interested in this article on Tire Rack: http://www.tirerack.com/tires/tiretech/ ... techid=188" onclick="window.open(this.href);return false;