hey, yeah i own a 2003 cr 125 adn i race in the 125 B class. the powerband on them is that u have to keep them wound out all the time, thats where they run the best they have absoulty nothing on the bottom end but pull hard all the way from the middle to the top. i did motor work to mine and that helped me alot and i love my bike the way it handles adn all. i have some friends that ride and they have 2004 crf 250 hondas and the powerband on them is smooth all the way throu and pull hard. what really helps the fourstroke rap harder is a white bros pipe that really gave the fourstroke alot more on the top end. i guess that it all just depends on your riding style on what u want to get, i prefree the two stroke over the fourstroke cause that is just the way i ride. hope this helps ya.