Can someone explain the difference in brake grades and what you suggest. I am getting ready to put my newly powder coated rear wheel, a new rotor, and a new tire on. I figure I might as well do the pads while I have it apart as hopefully I will not take the rear off again for a while. Is there any other maintenance I should do while it is apart? Respectfully Yours! Wess Heavner COG #8010 CDA #0239