ok, dont rip me too bad....but.....i just sold my yz450f to a buddy and came home with a '06 yz 250 2-smoker. i still love that 450, but i ride in a lot of very tight trails and i wanted to give a lightweight 250 a try to see if it would work any better. rode it for the first time today and wow, what a difference. the aluminum framed 250 is very nimble and feels like im riding a 125 as opposed to the 450. the bad thing....no more instant-on wheel lifting power for those obstacles that appear right around the corner. no mass amounts of hill climbing torque (altho the 250 had no problems getting me to the top of all the hills we came across) and its not gonna be as easy to roost my buddies with a mud and gravel sandwich! the other thing i noticed was that i wasnt nearly as tired after riding one of our normal loops as i usually was on the 450, even while trying to get acclimated to the new bike. anyways, ill still be trollin around here and thx to all for the help and tips ive recieved here in the past.