Abstract: A disc brake has a structure for supporting the friction pads in which a caliper body including a bridge section extending over a disc and first and second arm sections is provided with a pad spring for resiliently holding the upper portions of the friction pads to come in pressure contact with the sliding plane of the disc. The friction pads are provided at the upper parts of the backing plates thereof with recesses or projections, and the pad spring is constructed from a holder and a bent extension located at its center.

Abstract: A device for preventing rattling of a friction pads in disc brakes, in which a resilient member for avoiding rattling is interposed between the outer periphery of the friction pad and the inner surface of a portion for receiving the pad. The pad-receiving portion is formed in a caliper body.

Abstract: A breaking apparatus for motorcycles in which a piston movable within a master cylinder for the front wheel, is actuated by operating a hand lever. Output and input liquid pressure chambers are provided in front and at the back of the piston, respectively. At least one auxiliary piston is movable within a master cylinder of the rear wheel, and may be actuated by operating a foot pedal. At least one output liquid pressure chamber is located in front of the auxiliary piston, and the output liquid pressure chambers of the master cylinder for front and rear brakes communicate with front and rear wheel brakes, respectively. The output liquid pressure chamber of the master cylinder for the rear wheel communicates with the input liquid pressure chamber of the master cylinder for the front wheel.