With the aim of preventing heat-induced deformation, Shimano has reinforced the alloy carrier and optimized the arm shape in the RT-CL800 brake disc. The result is not only a smoother, but also quieter braking experience. With the help of the proven Ice-Technologies Freeza design, the disc at the level of the GRX RX810 series provides first-class, consistently stable braking performance even on long and steep descents.

The key to outstanding braking performance is rapid heat dissipation, which is achieved with the help of the so-called sandwich construction (stainless steel - aluminum - stainless steel). This results in a significantly lower surface temperature, which in turn ensures less fading, a more consistent brake modulation as well as higher braking power, while at the same time less brake noise and a longer life of the brake pads.

Specifications
Reliable, Smooth and Quiet Braking Performance
Excellent Heat Dissipation for First-Class Braking Performance on Long, Steep Descents
Ice-Tech Freeza Design
Sandwich Construction (Stainless Steel - Aluminum - Stainless Steel)
Rotor: Stainless Steel / Aluminum (Polished)
Spider: Aluminum (Painted)
Activity: Cycling
Material: Aluminium, Stainless Steel
Usage (Bike Sport): Road Bike
Rotor: Centerlock / AFS
Model Year: 2025
Collection: Full Year

Mfr Claimed Weight
96g