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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 .
Sportster motorcycles are powered by a four-stroke, 45° V-twin engine in which both connecting rods, of the "fork and blade" or "knife & fork" design, share a common crank pin. The original Sportster engine was the Ironhead engine, which was replaced with the Evolution engine in 1986.
In 2021, Harley-Davidson launched the Sportster S model, with a 121 hp engine and 228 Kg ready-to-ride weight. [152] The Sportster S was one of the first Harleys to come with cornering-ABS and lean-sensitive traction control. [153] The Sportster S is also the first model under the Sportster nameplate since 1957 to receive a completely new engine.
Also available in the Sportster model beginning in 1986, it was made in the 1,100 cc (67 cu in) displacement until 1988 and is still made in the 883 cc (53.9 cu in) and 1,200 cc (73 cu in) [1] displacements for the Harley-Davidson Sportster, replacing the ironhead Sportster engine.
File:Harley-Davidson Museum February 2024 23 (Engine Room--Ironhead Sportster, 1957-85).jpg. Add languages. Page contents not supported in other languages.
Old-style tank shift. Regular clutch hand Shifter - This is where the shifter is a regular knob either located on the tank, which operates through a linkage to the transmission (tank shifter) or on a lever bolted directly to the top of the transmission (jockey shifter or slap shifter depending on the transmission design) and involves the semi-complex task of foot clutch operation and hand ...
Pandulf Ironhead (died 981), Prince of Benevento and Capua; Harley-Davidson Ironhead engine, a motorcycle engine produced by Harley-Davidson between 1957 and 1985 "Iron Head", a song from the Rob Zombie album The Sinister Urge; Ironhead Studio, a costume and art studio that designs many different costumes for American comic book based films.
1950s-era Manx Norton styled replica built for the 1990s named Manxman, using a replica Featherbed frame constructed to special order by BSA [1]. The featherbed frame was a motorcycle frame invented by the McCandless brothers and offered to the British Norton motorcycle company to improve the performance of their racing motorcycles in 1950.