The Shimano Deore XT RT-MT800 brake disc uses the successful Ice-Technologies Freeza design to decrease the temperatures while braking what results in a consistent braking performance even in the most demanding conditions and increases the brake pad’s lifetime as well.

The basis of the construction is the disc’s so called sandwich structure (stainless steel – aluminium – stainless steel) which not only improves braking power and reliability, but also effectively dissipates the heat via the integrated cooling fins.

These rotors come with an External BB style lockring that suits larger axle sizes. You’ll need an external bb tool to attach them.