Originally posted by DakarM
tramming has more to do with tread pattern than size.
i used to get traming with 205/50/15 good year GA as well as 225/45/17 and 245/40/17 dunlops.
the current 235/45/17 and 255/40/17 toyo t1-s does not tramline at all.
also it's not just the forces on the tires but the tendency of the tire to follow the groove/lines on the road surface.
I concede that I oversimplified things. And you're right, the tread design of modern tires has advanced by leaps & bounds in the last 5 years alone. Those are impressive results from the T1-S tires...:shocked: