SHOCK 412 SERIES 13" BLACK 500953 671" diameter press-in crankpins for

671" diameter press-in crankpins for S&S flywheels manufacturered in 2012 or earlier

Conceals brake & electrical components and does it while looking great

The gear drive system is in fact a revolutionary different and much more reliable construction

Stock replacement for S&S 531371 rocker arm set

OEM replacement reference 34901-79

SHOCK 412 SERIES 13" BLACK 500953 671" diameter press-in crankpins for412 Series ShocksManufactured from the finest materials available Designed specifically for Harley models The 412's simple, durable design makes them a cost effective improvement to your motorcycle's suspension performance A five position cam style spring load preload adjuster lets you easily dial in your ride Available with either a standard or heavy duty progressive spring rates There are multiple style options available, like full show chrome or