The Yamaha YZF-R6, commonly known as the R6, is a legendary supersport motorcycle produced by Yamaha from 1999 to 2020. It quickly became a top-seller and icon in the competitive 600cc class, renowned for its exciting performance, agility, and racetrack success. Here's a breakdown of its key features and evolution: Engine and performance The R6 is powered by a compact, lightweight 599cc liquid-cooled DOHC inline four-cylinder engine with race-developed technology. It features 16 titanium valves,