Ashima: Quite simply revolutionary. RPMX (Rubber Plastic Matrix) uses a plastic fitting on a traditional rubber pad for a superior fit between pad and holder aswell as increased stiffness in the pad meaning a perfect fitevery time and increased braking performance. RPMX pads are lighter, stiffer, safer and mucheasier to fit to Road or V-shoes. Ashima’a all new Pro-G Advanced rubber compound performs up to70% better under heavy brakingthan a standard rubber compound. Incredible performance wet or dry,you will really notice the difference. RPMX and Pro-G combined means sensational, reliable and efficient braking whatever the conditions.Sold in PairsRoad Pad Shimano pr (Shimano)