Yamaha YZF-R6

The Yamaha YZF-R6 is a sport bike that Yamaha produced in the 600 cc class from 1999 to 2020. Introduced in 1999 as the super-sport companion to the YZF-R1, it carried a completely new engine that made over 108 hp, and it was the first 600 cc production four-stroke motorcycle to exceed 100 hp in standard form. The 2003 model gained fuel injection, the 2006 model added ride-by-wire throttle and a slipper clutch, and a 2008 variable-length intake and improved frame followed. In 2006 Yamaha admitted that the advertised 17,500 rpm redline was above the true limit of 15,800 rpm and offered to buy back bikes from unhappy owners. A 2017 redesign brought new aerodynamics, ABS, riding modes and traction control. From 2021 the R6 was limited to a race-only specification in most markets, and the R6 won the 2011 Supersport World Championship with Chaz Davies.