31-4065 Sprocket shaft bearing spacer shim .104"

This .104-inch sprocket shaft bearing spacer shim from S&S is a vital component for achieving the correct pre-load on the sprocket shaft bearing of your Sportster. It is designed to fit 1977 to 2003 XL Sportster models. In the world of high-performance engine building, even a few thousandths of an inch can make a massive difference in bearing life and engine smoothness. S&S manufactures these shims to exacting standards to provide a reliable solution for mechanics who do not compromise on engine geometry. This specific shim is a direct replacement for OEM number 9144.