1938' Harley-Davidson knucklehead

Without question one of the most handsome and readily recognizable motorcycle power units of all time, the Harley-Davidson 61ci overhead-valve v-twin - known as the \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' Knucklehead \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'after its distinctively shaped rocker boxes - arrived powering a stylish all-new motorcycle in 1936. A twin-loop frame was deemed necessary to handle the 61ci\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'s increased power (37bhp in\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' E \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'and 40bhp in high-compression\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' EL \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'forms ) while the front suspension too was beefed up, the forks switching to oval