Description
This pennant features what is referred to as the Knucklehead Engine. In 1936, Harley-Davidson introduces the EL, an overhead valve, 61 cubic inch powered bike. With increased horsepower and bold styling changes, the motorcycle quickly earns the nickname of "Knucklehead, " due to the shape of its rocker boxes that resembles the knuckles on a hand. | Harley-Davidson Knucklehead Engine Pennant, Cream
