Drilled 11-1/2" polished stainless steel rear disc is compatible with all disc pads including sintered metal and OEM. OEM No: 40939-86A Drilled 11-1/2" polished stainless steel rear disc is compatible with all disc pads including sintered metal and OEM. Fits: FLT 1986-1999 Size: 11-1/2 inc