Harley-Davidson's Milwaukee-Eight engine has two spark plugs per cylinder. It's all about boosting performance, efficiency, ...

With a massive V-twin engine, plush suspension, and top-of-the-line features, this new Harley touring bike has it all ...

Harley-Davidson's Knucklehead engine released back in 1936, and despite its age, models with the engine can sell for over $200,000 even today.

In the world of motorcycle makers, there are few pieces of hardware important enough to have earned their place in the industry’s history books. As it happens, many of those who do have been created ...

Harley-Davison motorcycles are known for their use of big V-twin engines. The company's proprietary engine design has come a long way since the introduction of the first 49.5 cubic-inch version in ...

Without a doubt, the first thing that comes to mind when thinking about Harley-Davidson is motorcycles, with the company already having built a name for itself as one of the major motorcycle brands on ...

Harley-Davidson's model codes may look confusing, but they actually follow a fairly simple structure. Here's what they mean and how to read them.

Harley-Davidson's new Sportster range proves that nostalgia and innovation can coexist.

Wisconsin is the beating heart of Harley-Davidson. Literally. Not only is it the birthplace of the historic brand, not only is it where hundreds of thousands of passionate customers visit every year, ...

Few sounds in the motorcycle world are as iconic as the specific rumble of a big V-twin Harley-Davidson, but what about their engines makes such a unique sound?