Are the Ultra Lows a pretty dramatic upgrade? I’ve got some pretty fresh Inverted plates but still considering buying a set of the new ones. They look a lot cleaner but performance wise I’m not sure I can justify it at the moment.
Can anyone tell me if they loosen on their own like the regular ones? They might bite the bushing a bit better.
I got a set of the ultra low Slappy inverted kingpins, which I have tried on most inverted baseplates of various brand trucks I have here, which all seem to sit well enough.
With regard to the question if they loosen - that would be down to the baseplate and the kingpin nut, more so than the kingpin itself. No nyloc to hold it in = it is going to loosen off. Nyloc that is not worn out or loctite or something similar = hold in place.
That is my understanding from all the inverted options I have. More constant messing with the inverted kingpin, or swapping out bushings every other day and that nyloc is going to go pretty quickly. Baseplates I have barely touched since setting up are still going fine and haven't moved at all, medium bushings, checked and marked kingpin head, etc.
Of course that is just one take, so that is not to say some might hold better, some worse or whatever, but if your existing kingpins are moving, I don't think trying different ones is going to help a whole lot.
At least here in AU that ultra low kingpin set is pretty cheap compared to getting new trucks, (even more if you get wholesale / shop discount) so that's why I got a set just to see what it was like, more than getting a set of trucks.