Yes, I see this. The ZXR front end is on now with the only mod being an adaptor collar to fit the bottom bearing into the NSR frame. Now that's done I have just picked up some ZXR636 forks that very happily fit into the ZXR400 clamps. Whichever way I go, I believe that USD forks are staying on. It changes the whole look of the bike. I like it a LOT!!!