Guys i need a bit of advice. I am looking at getting a new bike. I was looking at the CRF and the RMZ, but it seems as though they are having some reliability issues. Of you guys that have the 450 SX how has it done on reliability, and maintenance? I ride mostly trails, and a little bit of other stuff. How does everyone like these bikes in the woods? How does the 4 speed do in the woods? Any help would be great.