1914 Harley-Davidson Model 10-F Twin

A V-Twin with “step-starting,” chain final drive and a 2-speed hub marked a big advancement for Harley-Davidson. Harley-Davidson entered the modern era in 1914 with their first multi-speed big twin. It incorporated an in-house designed 2-speed in the rear hub, a design common in bicycles, and the ability to change gears was a huge advance Read more

1947 Harley-Davidson Knucklehead EL Sidecar Rig (Frank Webb donation)

Except for their limited production racing machines, at the beginning, Harley-Davidson built only inlet-over-exhaust and then side-valve powered motorcycles for a little over twenty years. They first experimented with overhead valve engines in smaller single-cylinder bikes like the BA; this 350cc single was popular in export markets. But in 1936 Read more

1957 Triumph TRW

The British Army employed motorcycles as a matter of course, not just in times of war. So before and during World War II a number of machines from BSA, Norton, Royal Enfield and Triumph served a wide range of courier functions, were even tested for some battle services. These riders delivered secret signals, ration messaging and even located and Read more

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