.010" thick (extra thin). Standard thickness is .020". OEM replacement reference 16779-84D. SLS (Single-Layer-Steel) spring steel gaskets have .001" of high temperature Viton rubber coating on both sides. They will not weep, extrude, tear or become brittle over time.
Fits: > 84-99 Evo Big Twin; 86-22 XL Sportster; 08-12 XR1200; 91-10 Buell XB (NU)
