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SwissStop Catalyst disc rotors deliver consistent brake torque over long durations where others experience gradual decline and brake fade.Optimum heat dissipation for maximum braking endurance and shortest stopping distancesReliable performance from cyclocross to downhill with high durability, even in he toughest conditionsLightweight 7075-T6 aluminium spider with highly efficient SUS410 stainless steel brake trackUCI approved for use in road competitionCentrelock fitmentDue to extremely efficient thermal management, Catalyst provides notably shorter stopping distances with very low wear rates under hard braking, exceeding the current industry leaders.