NancysToy
Motorbike Professor
Sorry, I don't buy it. While warped rotors are not as common as most people believe, they certainly do exist. You can lay a straight edge across them and measure the warping. It is easy to tell build-up from the flat rotor surface. It would also be easy to turn off the build-up, keeping the same disc thickness...which is not the case normally. Most turning is necessitated not because of warpage, but because of grooves worn in the rotor surface, BTW, although warped rotors do sometimes show up on the brake lathe when they are being turned. It is my belief that warping is more prevalent in flat, floating rotors, such as motorcycle rotors, as opposed to fixed, ventilated, cast discs with their increased thickness and cast-iron construction.Hey Doc... I've read a few articles about this and it seems that brake rotors don't really 'warp'.. it's actually buildup on the rotors that causes the surface to be uneven.
http://www.examiner.com/auto-in-orlando/there-s-no-such-thing-as-warped-brake-rotors
Perhaps a good reason not to use the parking brake unless you really really have to.... or at least let things cool down before applying the parking brake......![]()
BTW, nice to have you drop in at long last. Nancy and I were just wondering how you were getting along. We missed you here.