The Campagnolo Ekar Disc Rotor is strong, powerful, and ready to deal with the most difficult gravel conditions. Made of 1.85mm tempered stainless steel, this rotor is sure to hold up through heavy and sustained braking. It is available in 140 and 160mm diameters to properly suit your personal riding style. The larger rotor produces greater stopping power thanks to a larger surface area with more heat dissipation. Please note that a lockring is not included with the rotor. The Campagnolo Ekar Disc Rotor is a beefy and powerful component that stays straight and true through the most punishing rides.