High-Performance Exploration. The Sportrax line of high-performance, technologically-advanced ATVs is perfect for exploring these twisting backwoods trails or the windswept, wide-open dunes. How do you make the 2005 Pro Quad Champion, ATVA GNC MX Champion, and Baja Champion even better? How about a new engine with even more power? How about new suspension settings and steering geometry? How about two versions; kick start or electric start? That's the new 2006 TRX450R. The best sport ATV we've ever made — quite a bold statement, considering Honda has dominated the class. Recommended for riders 16 years of age and older. Honda recommends that all ATV riders take a training course and read their owner's manual thoroughly.