Well, i have bought a crf 250r. I still have my yz 144 and have no intention on selling it unless after a year i totally love the 4t still. Plus i just put a new motor in it so it would be stupid to sell it along with the other fact that i love that bike. anyways i gotta say the crf is great for me. I am 195 pds with no gear and wanted a more powerful bike, but not as powerful as a 250 2t. I have 3 rides on it now and love it. I dont know what people are talking about that these dont handle well, i think it handles better than my 05 yz with revalved suspension. No doubt the yz can turn sharper but the crf is way more stable in a corner and holds it better. You can just lean the honda over and hit the gas it it just goes great. Power wise the crf is for sure more powerful, but only off the bottom really. i think its faster over all but not by much compared to the 144. If you drag raced them it would be close i think. also all the power on the 4t seems usable and more controlable. On the yz thats one thing i did not like was being in the powerband when i did not wanna be and it was harder for me to control. Only thing i dont like on the 4t is the weight, which really is not that noticable until you fall or almost fall, and starting the thing. Its a process to start it. Besides that great bike, love it so far. I just thought i would post cause i know people are thinking about switching. From a 125 or 144 its for sure a upgrade, but i dont think going from a 2502t the to 250 4t would be.