After its massive move to unleash the fuel injected Suzuki RM-Z450 for the 2008 model year, Suzuki was not expected to make much gains for improvement in its 2009 RMZ450. And it didn't. But for a few aesthetic upgrades, the MX bike still maintains its rave 2008 mechanics, which include such features as the EFI system as well reworked five-speed transmission. The only big news in this model year was the reduction of several of its 2-stroke dirt bikes, as the global move toward 4-stroke motorcycles makes way.