Shimano Dura-Ace RT-CL900 Ice Tech FREEZA Rotor with Internal Lockring

Shimano's Dura-Ace RT-CL900 represents the pinnacle of rotor engineering, combining advanced Ice Tech FREEZA cooling technology with precision internal lockring design. This premium component delivers superior heat dissipation during demanding rides, maintaining consistent braking performance even under sustained pressure. The internal lockring ensures secure, tool-free installation while reducing rotational mass. Built to exacting Dura-Ace standards, it's engineered for cyclists who demand uncompromising reliability and cutting-edge thermal management on every descent.