Honda CRF100F Dirt Bike: How to describe Honda's CRF100F? Sure it's reliable. And it's the perfect size to fit a wide range of riders. But most of all, it's just plain fun to ride. Of course, the CRF100F has a serious side, too. Its proven powerplant, smooth-shifting five-speed transmission, Pro-Link suspension and overall Honda quality mean plenty of performance with no headaches. Plus its low seat height and light weight make it just the right size for a wide range of riders with fun on their minds.