10-spoke floating. Stainless steel with black carrier and a clear disc. 11.8" / 300mm OD; 56.3mm ID; 10.2mm (3/8") counterbored mounting holes. Mount style ''B''. OEM replacement reference 41810-08B/C. Designed by Master Designer Kodlin; produced by Brake Specialist SBS. It is just logical that when combining specialists in their respective fields you get the best of both worlds; and that is exactly what happened. Made of a high quality laser cut stainless steel; alloyed with a high carbon content; to offer excellent brake performance and reliable stopping power in any condition. Comes with a black carrier and a clear outer disc or black nitrided outer disc. Note: Only the friction area of the black nitrided outer stainless disc will wear away quickly; leaving the rest of the brake disc black.