Quote:
Originally Posted by taosx5
This group Vredestein deal is awesome, my tires are being shipped tomorrow. I have a question that has annoyed me for some time. I always thought a directional tire meant there was a left and right. But since I have been changing winter and snow tires on my 4.6 I noticed that the Diamaris have the same deal. If you scroll down on the original post and get to the third picture showing the direction the way the Vredesteins are supposed to be mounted, the way the water is directed to the groove is different from the left side to the right. On the right it goes from front to back and on the left it goes from back to front. I know this is how they are mounted and all but can anyone explain how this works, to me they are then not directional.
You will have to go to the first and original post to see the pics I am talking about. Anyone???
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The best way I can explain it is its both directional and non-directional (mostly non-directional).
The tires are directional in that the groove that goes the whole circumference of the tire is always installed on the inner side. So, they are treated directionally for installation.
However, the tread design/pattern was designed to be effective in either direction.
So, in their own words:
"Thanks to this ingenious design, the Ultrac Sessanta is asymmetrical but its performance is not directional. This makes the tyre exceptionally quiet"
I think most people would agree that they are not really directional - since they can rotate effectively in either direction.