The engines never changed their basic design from their inception in 1946 through their replacement by the A50 in 1962. It was basically an air-cooled vertical twin, with both pistons rising and ...
BSA Motorcycles are on the verge of a comeback, reviving the heritage of the brand's 1960s heyday — by 1969, the conglomerate of BSA and Triumph made up 80 percent of Britain's overseas motorcycle ...