...and I have a delema.. My 06 YZ450 is basically all stock besides the suspension, and as it sits it has over 100 hard hours on it. Heres my problem, do I sell it to get a new, fresh bike, or get some goodies for my bike. I really like the idea of a 250f, the lightness of them is a massive plus for me, I can ride them faster, and hang it all out on the line about twice as long, but the sticker shock of a brand new bike and the engine life of a 250f is what makes me think. If I get a 250F my guess is it will see alot of rev limiter, would 75 hours be to much out of the stock top end? If, I go the cheaper route and keep my 450, what should I do to freshen her up. Im thinking those new tubless tire inserts and maybe a lighter, shorter silencer. Anything else? I know I posted this in the 450 section, but from what I have read, there are older and yzer guys over here and would like to here it from us 450 guys. BTW, I am 158 lbs in gear, 6'1" and run B class. Thanks in advance guys.