Looking for a sport ATV that's sure to put a smile on your face? You can't beat the fast and friendly Honda TRX400X. Under its 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 231 mm (9.1 in.) of rear-axle travel and 208 mm (8.2 in.) up front. And the TRX400X has a practical side to it, too, with handy features such as standard reverse and electric start.