Here's one thing that I don't think a lot of people understand, even on the 2 stroke favored side. 2 strokes, have powerbands, because in search for higher hp they lost lowend. To alievate that to some degree, they made a thing called a power valve. Has anyone rode a KD/KE100? While riding that bike, did you feel that the power was uncontrollable, and wanted to spin or let loose? Have those same people rode a XR or CRF100 before? How similar was this power? Pretty much same power characteristics but had more power? I get made fun of, from my knowledge of these things, because of what the knowledge that most people have, is what they've learned from riding mx 2 strokes. Meaning, they think all 2 strokes have to have race type powerbands. It can't be further from the truth. If you look at two dyno charts of a 250F and a 250 2 stroke, the torque and hp are always higher on the 250 2 stroke. If you know anything about building a motor, you know you can always smooth out and lower both on a 2 stroke, and they will still be higher than that of a 250F. Like TotalNZ stated, it is just not what most people, think they want. But those same people (not you Totalnz) will sell that 250 2 stroke and go buy a 250F. If anyone doubts what I say, take your 250 2 stroke, and lock the powervalve closed (not open). Then get a flywheel weight. Then jet it to run correctly. You will be very suprised at the outcome. That is a simplified version of the mods I do, thus, the power output may be lower than that of a 250F, but it will give the outcome of what I speak of. No all or nothing powerband, just smooth no spin riding. The best part of a 250 2 stroke modded to run like a 250F? The motor will last even longer than it would have stock.