Greetings from the AZ Desert - Looking for a new bike and wanted to get a few a forum opinions. Current ride is a modified '04 XR650L-- no smog pump; rejetted carb; Yoshi pipe, knobbies, IMS 4 gal tank, 14/48 sprockets. Figure this bike is somewhere around 40HP. I ride about 80% sand/20% street. In this config, the bike has monster torque-- quite happy with the power, as it will get me through any deep sand and hills I come across. What I could do without, however, is the 300lb+ weight of this beast. After an hour or so, this bike becomes a real workout. I'm in good shape, 6' tall, and weigh about 205lbs w/gear on. - Been thinking about a lighter bike, but don't want to give up the power. I'm considering the XR650R (277lbs), CRF450X (255lbs), and even the KTM 525EXC (249lbs). although the XR650R is only a few lbs less than my "L", I hear rumor that it has gobs more power. As for the other two bikes, I'm assuming that a 50lb reduction in weight would make a big difference off-road. Anyone have HP/torque power-to-weight ratio or other info any of the bikes I'm considering? - Awaiting your comments/expertise/recommendations!