Quote:
Originally Posted by Kaline
I used to be an engineer at a major U.S. tire company, and all I will say is if it helped the tire perform better, it would be designed into the tire! My opinion is that siping is pure profit for the tire shop, accelerates tire wear and give less dry and rain grip.
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If you were an engineer, than you know that some tires have the small cross cuts in the tire when they are made so that they do have the better properties if traction and cooling.