Sport bike enthusiasts love to think they can ride circles around Harleys but not Sportsters. Harley-Davidson makes those just to prove that a hulking bike can also be a sporty one. Once Harley convinced everyone that it can make a sleek, racing bike with its K-designated motorcycle series, it launched the Ironhead, the first Sportster, in 1957. However, the most famous Harley-Davidson Sportster is the XR-750. This racing bike was Evel Knievel's jump bike in the 1970s. Following the widespread popularity of this series, Harley-Davidson made a café racer in the late 1970s. Then in 1986, Harley gave its biggest Sportster a 1200cc engine. Since then, there have been multiple Harley-Davidson Sportster 1200 bikes. The XL1200C introduced in 1996 was a custom model while the XL1200S released a couple of years later brought dual spark plugs and better cams to the line. The XR1200 continued this trend in 2006 when it became the first Harley with Down Draft fuel injection. With decades of such innovations, Harley-Davidson has proven that it can keep up with its fans' need for speed. Find out for yourself when you purchase one of many Sportsters offered by reputable sellers on eBay.