Shimano SLX SM-RT70 Center Lock Disc Brake Rotor 160mmThe Shimano SLX SM-RT70 Center Lock Disc Brake Rotor delivers superb stopping power for the most aggressive riding. The Ice Technologies Freeza rotors dissipate heat to maintain braking performance on long downhill stretches. Shimano’s Center Lock mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design. This is the 160mm version.192790504803