Hankook 175-70-14

Question from visitor, 17/05/2011 :I just fitted two Hankook 175-70-14 summer tires to my car, at the front. It is unidirectional and I now see that the one is rotating in the wrong direction. What is the downside of leaving it like this?
Answer by rezulteo, 17/05/2011 :

Hello,

The downside is mainly an increased noise level and a worse aquaplaning performance.

rezulteo