Btw, it is a donor from a 4/4" axled dyna. Not bagger or softail... To the gma fans, that is fine, this brake is much better in my opinion. Ive used gma for customers over the years, dont prefer them, not for function, not for looks, not for cost. Pads for these along with oem rotors are always available, last for a lot of miles. If you wear out oem pads for 2000 to 2007 on your shovelhead very often, you ride it ALOT !!