I have Dunlop SP Signature Sport tires on my Clubman S that were installed about 3 months ago. Today I was cleaning the car and noticed that the arrows on the tires on one side of the car are pointing rearwards while the arrows on the tires on the other side of the car are pointing forwards. These are asymmetrical tires, and I assume that the arrows on the top of the outside wall are indicating direction...? If that's the case then it means that on one side the tires' tread pattern is opposite of the other side.

But there's nothing that one can do to change this unless the tires are specifically made for each side of the car. Is this not something I need to worry about? I sent an email to both Dunlop and Tire Rack and they both wrote back that "these are asymmetrical tires", but didn't mention if they were directional or not. I assumed that the arrows meant they were directional, but I could be wrong.

I don't know that much about tires so I could just be completely ignorant here.

 

This page might help:

http://www.tirerack.com/tires/tirete....jsp?techid=39

 

I won't be of much help but I have owned several unidirectional tires and as I recall they all had an arrow with the word rotation next to the arrow. I read the link provided by Scavenger and it sounds like yours may be asymmetrical but may not be unidirectional.

 

Thanks for the link.

The thing is that the tread faces one direction on one side of the car, and faces the other direction on the other side, which of course makes sense if they are non-directional. Nothing says "rotation" anywhere on the tire, they just have little Dunlop logo/arrows all along the top of the sidewall. This might just be the logo, of course, but I just thought they might be directional arrows.