Guide pin for disc brake assembly and disc brake assembly including such a guide pin

A disc brake assembly comprising:

• an anchor bracket having at least one bore formed therein, the bore defining a first axis;
• and
• a guide pin adapted to be disposed in the at least one bore of the anchor bracket and configured to slidably support a brake caliper relative to the anchor bracket, the guide pin defining a second axis;
• wherein the guide pin includes at least one annular groove formed therein, the groove defining a third axis which is offset and substantially parallel relative to the second axis of the guide pin, the at least one groove having an annular resilient member disposed therein which member engages and is compressed against an inner surface of the at least one bore such that the member only is operative to continually bias the guide pin in the at least one bore whereby the second axis of the guide pin is continually offset and substantially parallel relative to the first axis of the at least one bore such that there is provided only by the member, due to the member engaging and being compressed against the inner diameter of the at least one bore, at least one defined point of contact between a portion of the guide pin and a portion of an inner surface of the at least one bore, wherein the first axis of the at least one bore is located between the second axis of the guide pin and the third axis of the groove.