The 1933 BSA B1 sports an air-cooled, four-stroke, 249cc, single cylinder engine mated to a three-speed manual transmission and can reach a maximum power output of 2.5 horsepower at 3000 rpm. In addition, it comes with a tank-mounted gear-shift, a spring loaded girder fork, a hard-tail rear suspension with a sprung single seat, a large headlight in the front, a center stand, large fenders and mid-mounted foot pegs.