The Shimano RT-CL700 centerlock disc brake rotor inherits the superior performance of the higher-end models with its ICE Technology and updated 3D aluminum carrier for quiet and consistent braking. RT-CL700 CenterLock Rotor Features Proven ICE Technology ensures superior heat dissipation and consistent braking Optimized 3D-shaped aluminum carrier is designed purposefully in every single dimension and achieves lightweight and superb heat distortion resistance Carrier shape prevents the entire rotor from deforming due to heat and reduces rubbing noise while riding Features a 3-layer stainless steel-aluminum-stainless steel sandwich design that radiates heat for better performance RT-CL700 CenterLock Rotor Specs Model No: RT-CL700 Mount: Center lock Sizes: 140mm, 160 mm, 180 mm, 203 mm Weight: 97 grams (140 mm), 114 (160 mm), 139 (180 mm), 169 (203 mm) Included lockring: Internally notched (140mm, 160mm), Externally notched (180mm, 203mm) Compatibility: Compatible with both metal and resin Shimano brake pads