The Tektro TR-45 center-lock disc brake rotor features a 2.3mm thickness for improved stiffness and high heat resistance. These rotors are crafted with stainless-steel to provide durability and corrosion resistance. - 2.3mm thickness for improved stiffness and high heat resistance (Please ensure that your caliper is designed to accommodate the 2.3mm thickness) - Crafted with stainless-steel to provide durability and corrosion resistance - Steel center-lock mount type - Lock-ring sold separately