2013 Yamaha YFZ450 R, 2013 Yamaha® YFZ®450R The Top Of The Podium Awaits The 2013 Yamaha YFZ®450R is an ATV motocross racing machine. Since handling is one of the key ingredients of winning a race, the 2013 YFZ®450R comes with a weldless aluminium frame with a tensile steel bottom part for a lowered center of gravity and more stability. Even more, thanks to the ProTaper 4-way adjustable handlebars, riders can choose the best stance to suit their riding style and thus max out the performance. The racing-spec titanium valve 449cc engine has been tuned to deliver low-to-midrange grunt for powerful acceleration during slow corners and plenty of torque to tackle obstacles.