Originally Posted by
cthenn
Don't want to sidetrack the thread, but they have a directional arrow on them, and the tread pattern tapers in one direction. It probably doesn't make any difference in terms of handling/grip, but it looks bad mounted backwards. I'm sure there are other tires that are directional as well. Whether that means anything in reality is another question, but there are tires that are directional

Yeah, I ride those all the time. I never look when I put them on.
Statistically, that should mean they're backwards half the time, right?
Let me go look....
So I have 700x25 GP 4000 S and a 4000 S II.
Ah, so the arrow is only on one side of the tire and I have both on backwards!!!