The new Apex Brakeset from SRAM was designed with highperformance and good looks as our guiding principles. FeaturingDual Pivot performance combined with a external centeringadjuster, proprietary pad compound the Apex Brakeset offersa powerful response when actuated. Features:Dual Pivot Stopping Power, the design increases braking power and enhances progressive feel.Weight: 308g pairMaterial: Forged alloy calipersSRAM Dual Pivot designSRAM/ Swiss Stop Compound padsExternal centering adjust High quality quick releaseConvex washersHigh quality barrel adjusterCompatible with 28c tiresFront and rear set