I had the opportunity to do a track day over the weekend (1st one in 21 years!) and discovered some issues with the rear brake. It seems to be locking up easily, and the pedal seems to ride too high for me. It is about the same height as the footpeg or slightly higher. I tried to adjust it down, but am apparently out of adjustment after barely moving it . Also, there is a half inch of play or so in the brake lever. Any ideas for fixes? I looked over the whole braking system and discovered that I have a bent rear disc as well, so I'm sure this was most of the locking problem, but I still need to change the lever position. Any recommendations for a new disc? Throw some new pads in while I am at it? Best pads for the rear? Bike is an '07 YZ250... Thanks!