The 1940 Harley-Davidson is a pure example ... that allows it to do what it is meant to do. The engine sitting in the frame is based on a flathead side-valve V-twin that displaces 82ci.

Harley ditched the atmospheric inlets in favor of a new design incorporating rockers and pushrods. The engine was slightly ... lineup until the arrival of its Flathead replacement in 1929.

The new Nightster's blend of form and function was already tempting. Thanks to a surprise price cut, there's never been a ...

Harley-Davidson Big-Twin engines have always tended toward the upper end of their contemporary displacement ranges, which ...

It started selling V-twin-powered motorcycles with some success in 1909, and its first big twin engine was made available to the public in 1911. Since then, we’ve seen Harley go through a number ...

Harley-Davidson Softail Cruisers are a massive upgrade over the previous editions, delivering improved performance and ...

CVO Road Glide RR, priced at $110,000, combines race-inspired performance with a sleek, limited-edition design.

Harley-Davidson is known for its chrome-heavy cruisers, ape hangers, and extravagant styling. But its latest launch, the 2025 CVO Road Glide RR, is a completely different beast. This is the most ...

The 'Flathead' was highly amenable to tuning and rapidly became the engine of choice within America's speed community and post-war, the standard bearer for the world of hot rodding. Post-war, the ...