S&S sprocket shaft assembly for stock, 1984–'86 flywheels and S&S BL and SM flywheels for late 1981–'99 big twin engines. Designed with a special keyed 6" large diameter taper providing more contact area, increasing strength and comes complete with matching nuts and keys. Designed for stock or S&S Super Stock crankcases.
Standard (1.250”) Bearing Diameter. . . . 33-2027
+.001” (1.251” ) Bearing Diameter . . . . . 33-2028
