I have not been able to figure this out. It seems as if one metal track is longer than the other. I layed both tracks side by side and could not tell a difference in length. Both tracks contain the same amount of track links. But when I place the tracks on my tiger one track is extremely tight compared to the other. In fact I have to add one link to this track in order to place it on my tiger. Has anyone else had this issue? [:@]