Shimano MT905 6-Bolt Disc Brake Rotor

Shimano RT-MT905 brings Ice Tech FREEZA technology to the 6-bolt standard, a popular choice for enduro and downhill. The additional aluminum radiator fins that extend from the three-layer construction serve to improve heat dissipation. Shimano's data shows a FREEZA rotor will run at an average temperature that's 40-8C lower than same size Ice Tech rotor which lacks the fins.