For years, Honda four-strokes battled with competitors’ two-strokes for supremacy on both the track and the sales floor. It’s still happening today with the CRF150R mini-motocross bike. Using a scaled-down, 149cc version of the Unicam engine that powers the CRF250R and CRF450R, this pint-size screamer is every bit the race tool as competitive two-strokes. Everything is downsized for maximum performance with minimum weight, including 17-inch front and 14-inch rear wheels, a 32.8-inch seat height (reasonable for a machine with nearly 11 inches of wheel travel), a jewel-like 420 chain in lieu of the 520 chain found on larger bikes, and a small 1.1-gallon fuel tank. The result is a feathery 185-pound race weight.