I ran across a great deal on a 2004 yz450 and was curious on how they do for offroad. I'm 220lbs fast C slow B rider in enduros. Ride mostly single track and 4 wheeler type trail, and mix in some brush busting with it every now and then. I was curious how the 4 speed tranny works in the woods as well if these bikes tend to have any over heating issues when ridden in the woods. Bike I'm looking at is mostly stock with a full White Bros. exhaust. Currently have a 2001 ktm300exc and used ride a 98' WR400 too so I'm used to and prefer to ride big bores. Any input would be great.