Harley-Davidson Servi-Car (1932 to 1973)

The Harley-Davidson Servi-Car was a long-running model of three-wheeled motorcycles (tricycles) that first debuted in 1932. The Servi-Car used various versions of Harley's 45 cubic inch flathead twin, paired to a 3 speed transmission. While the Servi-Car went through various small evolutions over time, the main concept remained largely unchanged until the model was discontinued in 1973.