Harley-Davidson introduced the "Panhead" Big Twin engine on the 1948 FL, a bike otherwise little-changed fromt he last prewar Harleys.

1948 Harley-Davidson FL Pictures

The 1948 Harley-Davidson FL motorcycle came equipped with serrated exhaust pipes, a feature that would remain on Harley models until the 1970s. The bike also featured a "tombstone" taillight.

Harley-Davidson had a hit in the FL, selling more than 30,000 of the motorcycles in 1948.

The Harley-Davidson emblem came to be associated with quality in the post-war years.

The front fender light served fashion more than function, but was a notable styling feature.

The "tombstone" taillight introduced in the 1940s was used on Harleys through 1954.

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