Abstract: The invention relates to a brake caliper with at least one axially displaceable, hydraulically actuated piston (1), with which a brake pad (8) can be pressed against a brake disc (9). The brake caliper is characterized in that the piston (1) defines a cavity with at least one inlet opening (12) for feeding a cooling medium into the cavity and an outlet opening (11) for discharging the cooling medium from the cavity. The inlet opening is spaced from the brake pad (8) and the outlet opening is arranged adjacent the pad (8).

Abstract: A hub assembly for a carbon/carbon clutch comprising a hub, a first clutch plate, and retaining means or locator releasably attachable to the first clutch plate thereby axially to define the position of the first clutch plate with respect to the hub.

Abstract: A hub assembly for a carbon/carbon clutch comprising a hub, a first clutch plate, and retaining means or locator releasably attachable to the first clutch plate thereby axially to define the position of the first clutch plate with respect to the hub.

Abstract: A disc brake caliper is made to receive a series of pads extending circumferentially of the disc. Each pad is pressurised by a pair of pistons including a smaller piston located radially outwardly and a larger piston located radially inwardly. All of the pistons and cylinders are connected together for common hydraulic pressurization. The arrangement provides better distribution of the braking force, and greater equalization of pad wear. The relatively greater area of pistons as compared to the pad area also contributes towards more even braking force, whilst the smaller diameter pistons and cylinders, as compared to what would be necessary if only a single piston and cylinder were used, enables shorter cylinder length and hence a slimmer and lighter caliper without risk of pistons tilting and jamming.