2014 Yamaha YFZ450R, Super nice YFZ450R with ITP tires and upgraded bumpers - Up for sale is a very 2014 Yamaha YFZ450R, it has nearly new ITP tires and aftermarket bumpers. Looks like it was ridden very little. It starts, runs and drives great. Conquer Dirt Take a look at a typical ATV race track and it will be rife with the YFZ450R. That won?t change for this year, because we?ve stepped it up again. A host of improvements, a slipper clutch and new air induction system among them, keep the YFZ450R on the top step of the podium.