SBS HS Sintered Brake Pads 634HS The best in sintered replacement pads for high-performance front (HS) and rear (LS) street applications Use advanced sintering process technology; perfect for sport riding The highest coefficient of friction in the lineup to provide maximum stopping power Formulation also offers high fade-resistance and quick cool-down under severe braking When you need to replace your worn sintered metal pads, choose STREETexcel; the sinter compounds with the power to stop you