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XLCH, Ironhead, (unofficial "Competition Hot" moniker) (unofficial"Xtra Large Charlie Horse" biker moniker)1958–1971: 883 cc, and 1,000 cc 1972 & up XR-750 (racing with the exception of being Evel Knievel's jump bike while sponsored by Harley-Davidson between 1970 and 1977) 1970–1971: 750 cc overhead-valve engine, iron heads
Harley-Davidson KHK The ironhead was a Harley-Davidson motorcycle engine , so named because of the composition of the cylinder heads (Iron instead of Aluminium). The engine is a two-cylinder, two valves per cylinder, pushrod V-twin .
61 cu in (1,000 cc) (1972–1985) 1957–1985 The first year of Sportster, a development of the KH with overhead-valve engines and cast iron heads. The engine was updated after 29 years. [3] XR-750: 46 cu in (750 cc) 1970–1985 Overhead-valve engines, iron heads (1970–1971), alloy heads (1972–1985) XLCR: 61 cu in (1,000 cc) 1977–1978
Lindsay, Brooke (November 5, 2006), "Harley's Sportster: From a Wild Child to a Grown-Up in 50 Years", The New York Times As grim as those days were in terms of performance, it was an era that produced two of the Sportsters considered most unusual and sought-after by collectors, the 1977-78 XLCR Cafe Racer and the 1983-85 XR1000. Both of these ...
Harley-Davidson 1000 cc HT 1923. By 1920 Harley-Davidson was the largest motorcycle manufacturer in the world, with 28,189 machines produced and dealers in 67 countries. [27] In 1921, Otto Walker set a record on a Harley-Davidson as the first motorcycle to win a race at an average speed greater than 100 mph (160 km/h). [28] [29]
The knucklehead is a retronym used by enthusiasts to refer to a Harley-Davidson motorcycle engine, so named because of the distinct shape of the rocker boxes. [1] The engine is a two-cylinder, 45 degree, pushrod actuated overhead valve V-twin engine with two valves per cylinder.
Harley-Davidson Twin Cam engine at the Harley-Davidson Museum. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with ...
The Panhead is an overhead-valve Harley-Davidson motorcycle engine, so nicknamed because the rocker covers resembled cooking pans. The engine is a two- cylinder , two- valve -per-cylinder, pushrod V-twin , made in both 61 c.i. (EL) and 74 c.i. (FL, FLH) displacements.