.020" thick (standard thickness). OEM replacement reference 16779-84D. SLS (Single-Layer-Steel) spring steel gaskets are .020" thick and 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)
