last week i put a new set of rear brake pads on my aerox. but when im driving around i can here them rattlling around like they are loose or something. when i changed thewm i applied a small amount of copper grease to the back of the pads. the disc is fine however. the pin that supports the pads seems a bit shifty. as in it moves back and forth a bit. i did put the circlip on the pin on the other side of the caliper.