Designed with a wider braking surface to make them more compatible with other brakes Features a custom steel braking surface riveted to an aluminum central carrier. Floating design compensates for thermal expansion with constant braking and self-centers to reduce drag TECH SPECS table{border-collapse:collapse;width:auto;max-width:100%;} td{text-align:left;padding:12px;font-weight:350;word-wrap:break-word;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Model Center Lock Floating Rotor Size 160mm Mount Center Lock Thickness 1.8mm Weight 123g Color Black