After the last race I noticed that my stock front brake disk is out of round enough that when I spin it on the stand, it stops when it comes to the places it's been hit by other peoples roost. The stock unit is a floating disk that Yamaha wants $150. to replace. I found and purchased an EBC contour rotor for $89.00 and am searching for a plastic disk guard. I got one from CYCRA they said would fit, but it doesn't. It's for the YZ and the bolt holes don't line up. My question's are; 1.) Is anyone else using a non-floating front rotor, what type, any problems? 2.) Have you found a front disk guard that works on a 04 WR 450? Has anyone tried the ACERBIS universal.