First, they are drilled with standard 6 hole mounting. They will work on any board with new or old school mounting. Second, I pulled them apart and checked the pivot cup and it is a standard size. It can be replaced with the small Khiro cups. I used the soft ones because I am out of the hard and it was still pretty tight so the hard may or may not work. I took it for a test ride and the soft definitely work though. The pivot itself is kind of blunt and not rounded, I haven't seen that before.
The kingpin is one of the loose ones with the square bottom but us the standard size and thread. The bushings kind of sucked so I replaced them with blue Khiro barrels and short inserts. I will probably swap them to something a little harder but I was out of Khiro red.
