Yamaha set the pace in the Hi-Performance ATV world with the introduction of their original YFZ 450, then upped the ante when they built a second generation racer, the YFZ 450R. The new ‘R came with a high tech aluminum chassis, fuel injection, a powerful engine, and racing quality, long travel suspension. Whether in the hands of a pro racer or an intermediate class rider, it made every rider better. Many riders hit the trails as well, however, and often that means a full width racer simply won’t fit between the trees.