Floating caliper disc brake

A floating caliper type disc brake comprising:

• a support member fixed to a vehicle body and disposed adjacent to a rotor which rotates together with a wheel;
• a pair of pads supported by the support member on both sides of the rotor slidably in an axial direction thereof;
• a caliper supported displaceably in the axial direction of the rotor, the caliper being supported by a plurality of guide holes provided in the support member and a plurality of guide pins respectively fitted in the guide holes;
• a claw portion provided on one side of a bridge portion of the caliper, the bridge portion straddling the rotor;
• and
• a piston provided on another side thereof,
• wherein the pair of pads are pressed against both side surfaces of the rotor in consequence of the extension of the piston so as to effect braking,
• pressed-side shim plates are respectively fixed to or retained by those surfaces of back plates of the pair of pads which are located away from a rotor side,
• pressing-side shim plates are respectively fixed to or retained by pressing sides of the claw portion and the piston, and
• each of the pressed-side shim plates and each of the pressing-side shim plates are slidably abutted against each other.