Campagnolo ekar afs spider disc brake rotorsuited to road, gravel and trail use, campagnolo has made its ekar afs hydraulic disc brake rotor from a durable tempered steel, with a floating steel central spider to quickly disperse heat built up on long descents. Lightweight and corrosion resistant, it enhances the braking performance of your ekar disc brakes in any weather and on any type of terrain.the ekar rotor is made from strong 1.85mm thick stainless tempered steel and specially constructed to stay straight and true, long term, even under heavy and sustained braking. it's available in 140 and 160mm diameters to suit your riding style or for an additional weight saving potential.features material tempered stainless steel construction with stainless steel central spider type centrelock compatibility campagnolo ekar brakes lightweight resistant to corrosion designed specifically for ekar 1x13 groupsets suitable for gravel and all road riding weight 157g 160mm 123g 140mmbuy campagnolo components from chain reaction cycles, the world's largest online bike store.