I hear a lot of people changing from 2 strokes to 4. I have just started riding about 9 months ago on a 250f and what a machine, great low down grunt. but after a while I got used to the power and was all was using the high end revs so I thought ill try out a 2 smoker. A bit reluctant I went out and purchased a 04 YZ125 and :yikes: WOW :yikes: this thing is crazy, the way the power hits you its great it was a little difficult at first getting used to a power band but now i love it and im never going to go back to the thumper. its just so much more fun and the way you can throw it in to corners and blast out twice as quick is unreal. the only bad thing i can find with this bike it the suspension is a little stiff, but it is a new bike so I should give it a while to break in. I think I would recommend this change to any one who is an aggressive rider and has been riding 4 strokes since they started riding it might not be every ones cup of tea but it is certainly mine. :laugh: