The 1957 Harley-Davidson XL Sportster motorcycle featured an overhead-valve engine. The Sportster looked similar to the final KH models -- because it was. Learn more about the 1957 Harley-Davidson XL Sportster.
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The Harley-Davidson Motorcycles Channel includes histories, photos and specs for Harley-Davidson motorcycle models. Explore Harleys on HowStuffWorks.
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1970s
The 1970s Harley-Davidson Motorcycles Channel features classic Harleys and their stories. Check out vintage Harley-Davidsons at HowStuffWorks.
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1916 Harley-Davidson J
The 1916 Harley-Davidson J motorcycle was a leap forward in style with a longer lower appearance. Other than the kickstarter, however, there were few mechanical changes of note for this year. See pictures and learn about the 1916 Harley J.
1966 Harley-Davidson FLH Electra-Glide
The 1966 Harley-Davidson FLH Electra-Glide motorcycle featured increased horsepower. Weight of the FLs had crept up to nearly 800 pounds and the extra power was appreciated by owners. See pictures and learn about the 1966 Harley-Davidson FLH Electra-Glide.
