0 Harley Davidson BA...
While Harley-Davidson had produced single-cylinder machines long before its V-twins, the bigger machines became synonymous with Harley-Davidson, and the singles were dropped in 1918. Still, not everyone wanted a Big Twin.
Harley-Davidson answered the racing challenge, and avoided a potential loss of customers, by re-introducing singles into its lineup in 1926, with the A and B single-cylinder 350cc models. One could choose a side-valve...