Originally Posted by onetwentyeight
1) apparently they stretch quicker because they were not meant to have stress applied from both directions. if you look at them it kinda makes sense.
Huh?
Tension is tension. The only thing that could possibly be different would be the direction of force applied to the pin by the roller.
EDIT: I just looked a picture of these and they don't appear to be built asymmetrically, or have instructions to be installed in a specific direction. How then, would one know what direction to install this unidirectional chain?