The Shimano RT-CL900 brake discs, part of the high-end Shimano Dura-Ace R9200 groupset, are specifically designed to further optimise performance. Thanks to improvements in the material composition, these discs ensure a significant reduction in heat build-up and distortion. This results in more consistent braking performance, even during long-term intensive use. The ultimate goal is to provide maximum braking power and more precise metering, so that the rider always has optimum control.

In addition, the rotor spider has an open design, which not only contributes to more efficient heat dissipation, but also minimises the influence of wind forces while riding. These adjustments make the RT-CL900 an ideal choice for riders who are looking for both performance and reliability under the most demanding conditions.