Jagwire pro lr 1 centre lock rotorjagwire pro lr 1 centrelock rotorthis superb component is specifically designed for use with mtb disc brakes as it ensures powerful and consistent braking performance. It features an aluminium spider alongside a stainless steel disc which makes it incredibly durable as you weave between the trails.lightweight mtb disc brake rotor ready for adventure, this brilliant version features a lightweight, two piece centrelock design which is much lighter in comparison to traditional 6 bolt rotors. This means you can enjoy faster speeds without any unnecessary weight holding you back as you blast across the mountain. Features spider material aluminium disc material stainless steel use mtb weight 112g 140mm 127g 160mm 153g 180mmbuy jagwire components from chain reaction cycles, the world's largest online bike store.