Team Yamaha R6’s Kevin Curtain took his Formula treme Title’s haul out to 7 in the 10 year history of the series. Yet more booty came in the shape of the Yamaha R6600 Title.Like many Japanese motorcycle manufacturers, Yamaha R6 started producing bikes following World War 2, having originally started making pianos and organs in 1887, hence the logo of interlocking tuning forks.