The 2015 Yamaha YZF-R6 is a 599cc liquid-cooled inline four-cylinder sportbike featuring a 16-valve DOHC engine, high 13.1:1 compression, and a 16,000 RPM redline. It produces roughly 122–123 hp at the crank, uses YCC-T and YCC-I technology, and has a 6-speed transmission, 417 lb curb weight, and a 33.5-inch seat height.