Anillo de bloqueo del rotor del freno de disco Shimano SM-RT900

The Shimano SM-RT900 Disc Brake Rotor Lock Ring is the correct replacement or spare lockring for Shimano's Center Lock disc brake rotors. Designed for use with Center Lock hubs, it threads on to secure your rotor firmly in place — no movement, no noise, no uncertainty under braking.

This is a genuine Shimano component, built to the same standard as the hardware found on Dura-Ace groupsets. If you're building a wheel, swapping rotors, or simply replacing a lost or damaged lockring, this is the part you need.