Hi I'm Tyler and I am 5"11 150 lbs. I personally own a yz250f completely stock and I am craving more power. I have been riding dirt bikes for 4 years and I would say I'm pretty good. I love yamaha but their 250f just seems to have no top end which is where I am riding it. I mainly ride open trails, and big open hill climbs. I have ridden my friends crf450r 06 and its a blast. The power lifts the front wheel in any gear, I love it. The only problem is that he tells me that after a while the power can get annoying and tiring. The handling of the yz450 is my biggest worry. I know they are 245 lbs and it seems intimidating. The yz250 2 stroke I've heard is also a blast along with light and quick handling. But I don't want to get the 2t and end up wanting the 450s power. I have never ridden a big bore 2t so I'm not sure how the power is on these new 2 strokes so please pitch in some advise if you have experience. I have already posted a couple of these but I'm not getting the answers I'm looking for. So please give as much info as you can. Thanks.