The Evolution engine, known for its use of aluminum parts, improved the overall health, longevity, and riding experience of Harley-Davidson motorcycles, contributing to the brand's success.

The Harley-Davidson Evolution engine is still popular even though evolution has left it behind. Here are the years that HD produced the Evolution.

Harley-Davidson's Evolution engine is, without a doubt, my favorite mill from Milwaukee. Sure, it's quite dated now, and it had its problems, but I maintain that the factory only retired it ...

If you are interested in a Harley-Davidson Sportster, it's worth knowing what kind of mpg they get. Here's what Harley claims ...

A 1999 Harley-Davidson Softail bike powered by the legendary Evolution engine was remade in custom form by Japanese garage Bad Land ...

The Harley-Davidson Evo 240 is a customized 1996 Softail Heritage put together by Spanish specialist Lord Drake, still packs the original engine ...

Our test bike had the 1200cc V-twin engine, which has the same bore but less stroke than the 1340cc Evo. The 883cc engine comes in the base Sportster 883, 883 Hugger and 883 Deluxe, all of which ...