2012 Suzuki RM-Z450, Bike in the summer, Timbersled in the winter! - With Timbersled Mountain Horse SX Sno Cross Kit The 2012 RM-Z450 is an open-class motocross machine thats ready to dominate the toughest of tracks. As a racer, you need quick, laser-accurate steering and confidence-inspiring high-speed handling all in one package. And you want a high performance machine with a racing pedigree that makes it competitive right out of the crate. The RM-Z450 has been taking champions across the finish line ahead of the pack for years, fiercely competing across the globe from the World MX1 series to Americas prestigious AMA Supercross and outdoor motocross championships. It’s no secret that champions choose Suzuki!