SHIMANO's DEORE XT / ULTEGRA / GRX  RT-MT800 compact and lightweight disc brake rotors feature rapid heat dissipation thanks to ICE TECHNOLOGIES FREEZA heat management system. Installing and removing the rotors is quick and easy with SHIMANO's CENTER LOCK design.

• Advanced heat sync design reduces brake fade
• New disc brake rotor construction boosts heat dissipation and reduces fade
• ICE TECHNOLOGIES FREEZA
• Easy disc brake rotor installation with spline mount and lock ring (internal)
• CENTER LOCK