I'm looking to buy a new bike and I can't decide between the CR 250 and the CRF 450. I am 17 years old, 6'1", 200 lbs. I race MX, hare scrambles, and trail ride. I'd say I have a fairly decent skill level. I finish top 10 in the Novice A class hare scrambles. I can do all the jumps at the local tracks. My first bike was an XL 185 before I went to a 2001 CR 250. I've never rode a modern 4 stroke before. I lean towards the CRF thinking it would be easier to ride in the woods with more torque. I'm also thinking less maintance. How often do CRF's need top ends compared to 250's? Another thing is I do my own topends on the CR, is it alot harder on a 4 stroke? I'm thinking The CRF would make a better hare scrambles bike for me and still be great at motocross. Any opinions? When do the 03's hit dealer floors?