Disc brake pad wear indicator structure

A disc brake for a wheeled vehicle, having a rotatable brake disc, a stationary hydraulic cylinder having inner and outer pistons slidable in opposite directions which are substantially parallel to the axis of said brake disc, said pistons defining a fluid chamber therebetween into which pressurized fluid is suppliable to initiate braking, directly and indirectly actuated friction pad assemblies positioned adjacent to the opposed faces of said brake disc, said directly actuated friction pad assembly being in abutting engagement with said inner piston and thereby forced against said brake disc when said inner piston is moved by said pressurized fluid, a yoke movable in a direction parallel to said axis of said brake disc by said outer piston to move said indirectly actuated friction pad assembly, and a torque absorbing structure integrally formed with said stationary hydraulic cylinder and having a pair of legs straddling said brake disc for guiding said directly and indirectly actuated friction pad assemblies, characterized by elastic means being mounted on said yoke and normally spaced from said torque absorbing structure, said elastic means reacting against said yoke under actuated conditions only when said indirectly actuated friction pad is worn to such an extent that said yoke travels towards the face of said brake disc in excess of a preselected distance and at least a portion of said elastic means comes into contact with said torque absorbing structure.