2012 Yamaha YZ250F, NICE BIKE - New to the sport, or a seasoned pro, you'll appreciate the effortless handling and smooth, responsive power. It's tricky building a bike that caters to the world's fastest racers, and those who just want to have some fun. The number one demand from both sides is cornering performance; that's what our engineers and test riders focused on when developing the new YZ250F. For 2012 we have increased the carb size to 39 millimeter and lighten the piston assembly for increased mid to top end power. Then we combined the revised engine with a new more rigid Bilateral Beam frame and revised suspension front and back. Take your competitiveness—or weekend fun—to an all-new level with Yamaha's potent YZ250F.