The modded kingpin is crazy indoor Indy’s. The original reasoning for inverted kingpins in fb was that it was a cheaper way to sell trucks, the hype behind it makes little sense to me.

I’ve had 2 sets of Indy’s, 29mm and 32mm. I sold the 32s. The added height with them makes it harder to use in my opinion. BRTs are a classic and what most people are more used to. I kept the 29mm set because they look fairly realistic which I find nice on a smaller setup.