Harley-Davidson Street "The most important new Harley-Davidson in living memory", and another to predict more bidirectional interaction between American and Indian manufacturers and consumers, naming the Harley Street along with other Indian-made or Indian-owned marques like Hero MotoCorp, KTM, and BMW: Harley-Davidson Street The Harley-Davidson Street motorcycle series was announced by Harley-Davidson at the 2013 EICMA show in Milan for 2014 introduction. It will comprise Harley's first all-new models in 13 years, and Harley's first lightweight motorcycle since the 1974 Sprint. The 750 is powered by a 749 cc displacement version of Harley's 60° SOHC V-twin, water-cooled Revolution engine dubbed the Revolution
Harley-Davidson Evolution engine until the introduction of the Twin Cam engine, the last of the line of single cam, overhead valve motors tracing their lineage back to the seminal Knucklehead design penned by founder Bill Harley. It is also the largest aftermarket supported Harley-Davidson design, to date, with clones of the engine being produced by third parties like S&S Cycle and several others. Harley reverted to a single cam design with the Milwaukee-Eight engine, first introduced for touring models in 2016. Harley-Davidson Evolution engine The Evolution engine (popularly known as Evo) is an air-cooled, 45-degree, V-twin engine manufactured from 1984 by Harley-Davidson for