Upon its introduction in 1957, longevity was not guaranteed, particularly as loyal riders scoffed at the new smaller v-twin machines from Milwaukee ... subculture with a dedicated custom parts supply.
Screamin' Eagle 135 Stage IV as a bolt-in replacement for the Milwaukee Eight engines in 2021 and newer Harley-Davidson Touring bikes, both air/oil and twin-cooled. As the name may suggest, the ...