Shimano RT-MT800 Ultegra/GRX/XT Disc - Internal Lock Ring

Ice Technologies and the Freeza disc brake rotor quickly dissipate heat for more consistent braking performance in extreme conditions, offering long pad life, reduced efficiency loss, and less noise.

Advantages and benefits

Lightweight coated rotors with heat-dissipating paint on exposed aluminum segments provide greater cooling, consistent braking performance, and smoother operation in all conditions. Brake pads coated with aluminum/stainless steel fins allow rapid heat dissipation that helps reduce maintenance needs, extends pad life, counters efficiency loss, and reduces noise.

Shimano Center Lock

The Center Lock system enables simplified rotor installation with spline lock and lock ring. The lock ring mounting system reduces total work hours and installation and removal times. Additionally, the solid fixation via spline lock enhances precision and stiffness while increasing braking efficiency.