Looking for a sport ATV that's a little less sharp-edged than the TRX450ER, but just as much fun? You can't beat the fast and friendly Sportrax TRX400EX. Under its new, aggressive-looking bodywork beats the heart of a racer: a high-revving 397cc RFVC four-valve engine that has torque and horsepower to spare. A no-fat chassis boasts a one-piece cast-aluminum swingarm for reduced weight and increased rigidity, and premium Showa shocks control an impressive 231mm (9.1 inches) of rear-axle travel and 208mm (8.2 inches) up front. And the TRX400EX has a practical side to it, too, with handy features such as standard reverse and electric start.