After switching to R.K.P.'s, I notice I got that 'dialed in feeling' that my Indy 215's couldn't get me... Same bushings tested too, 6 sets. I land with these R.K.P.'s whom I believe were made by Mystery, compliments of a friend David. The narrower axle snugs the wheels right under the board, the Indy 215's left them pokin' out about a quarter of an inch plus on both sides. Yay dialed in Bacon!!