I just bought my wife a '05 KX-100. After test riding it, I decided that she/we HAD to have it! I'm 180 5'10" and it pulled me around with plenty of authority. I'd even say it ripped! I was sold. I can't wait to play on it this year! Whenever she isn't on it, I will be. Nice bike. I wish I had one when I was 13.