They are the regular pivot cups for Sure Grip Super X plates. The pivots on the hangers themselves are much more rugged than tne normal Super X hangers. These plates unfortunately do not take skate board hangers.
We offer two different hanger widths. These being 5" and 6 5/8". This refers to the axle length from tip to tip. i will add this detail to the product page.
Thanks for all of your feedback.