Long a favorite of the serious sport ATV pilot the TRX400EX is the perfect dune-carving combination of class-leading performance and handling. And now thanks to wicked new styling straight off the TRX450R an all-new reverse gear and newly revised gear ratios the TRX400EX is ready to take the art of sport ATVing to a whole new level. For Highly Experienced Riders 16 Years of Age and Older.