Ladies and gentlemen, meet the champion. The Harley-Davidson KR750 racer was the winningest motorcycle in America for 17 years, until it was superseded by the XR750 in 1970, which is still winning races today. When it was introduced in 1952, the Model K was as radical a machine for Harley-Davidson as the Knucklehead had been in 1936, as it was a fully modern motorcycle. With full suspension front and rear, a unit-construction motor, modest weight, footshift/hand controls and clean styling, the K was clearly intended to address foreign competition in the U.S. market. The KR750 was the racing version of the roadster Model K, destined for glory on America’s flat tracks. While AMA rules for Class C racing favored the homebuilt 750cc flathead motor, which was pitted against 500cc OHV singles and twins, that didn’t mean the sidevalve motor was as retrograde as some would think. By the final year of production for the road-racing KR model (the 1969 KRTT), it was timed at 150 MPH on Daytona’s banking. Harley-Davidson’s dogged development of the old flathead design was simply remarkable, and the KR750 held its own on the track against supposedly superior machinery. The Harley-Davidson KR750 dominated American dirt-track and beach racing in the 1950s and ‘60s, and in 1956 they won every Class C National race. Between 1955 and 1969, KR750s won 12 of 15 Daytona 200 races as well. This 1960 Harley-Davidson KR750 is a terrific piece of American racing history, being an “as-last-raced” machine cosmetically and a time warp from the 1950s, when a KR racer was the ticket to a National Championship.This KR 750 features its original MR4 carburetor. It’s a compelling and purposeful racer, in correct condition, and it’s an absolute legend of racing history. A complet rigid original rear section for Flat Track racing comes with it together with a racing center stand for this Bike.