It's time to step up to a 450 and stop dealing with the issues I've had with my CRF250X. I want a YZ and am considering an '05 or newer. My only concern is I'm not a big fan of the 4 speed tranny. I ride mostly trail but like to hit the local HS course. 4 Speed makes me weary that on long sand washes or any sort of long straight I'll run out of rpm's but having never ridden one wanted to see what you all thought on years / tranny's etc.