I am on the hunt for a Dual Sport bike. I have owned 2 BIG XRs and was originally looking for an XR400 but realized that they were all old technology and still heavy compared to lots of other bikes out there. I then started going down the path of the WRs, but after researching the KTMs am sold. So I need some help understanding the different models of the 520sih range. FYI: I am looking for a bike to ride 90% of the time on the street, but that will be high performance in the dirt the rest of the time! I plan on running street slicks with a smaller sprocket (minus a link or two) for the road riding. Supermoto style minus the cool tricks I'll never be able to do I understand the basics of the different bikes with regards to the tranny, unless you correct me! The MXC is the close ratio 6 spd, thje EXC is the wide ratio 6 spd (lower 1st and 2nd and higher 5th and 6th from what I've heard), and the SX is a close ratio 4 spd. I also have come to find out that parts can be swapped between the different models. i.e. gear swaps, and even adding 5th and 6th to the SX tranny, thank you KTM! I'm not sure of all the details but I know that there are suspension and perhaps engine/carb differences between the models. Anything in particular here? I assume that the SX engine is a bit more performance tuned than the others. Higher compression, etc. true? what about the MXC vs EXC? My biggest area of concern is the dual sport-ability. I am looking at two MXCs tomorrow. One is a 2002 and is orange with black and has a headlight. the other is a 2001 and is orange with gray. are the different colors indication of slightly different models? Both have electric starts. The gray bike doesn't have a head light and the black does. I am hoping that the gray is still wired for a light. Maybe it won't matter when I pick up the aftermarket light kit.? How about electronics? Are the stators different? Will I need to swap stators for the lighting kit? I read something about a mod on the existing stator? What about inter-model differences like an MXC that has an electric start vs a non-electric start? There is a 520 SX that I am interested in getting and modding the tranny, stator, and adding the lighting kit. Seems like it would be a smoking bike but I am concerned that with the amount of miles I'll be putting on it I will be maintaining it all the time and rebuilding the top end frequently... Oh and last but not least what should I look out for when test riding the bikes? I rode a 2006 tonight that was BEAT The whole body was dented and scratched, the kick start had huge gouges in it from hitting the foot pegs, the brakes were weak, it squeaked, burned a little oil of the head somewhere, and it sounded like either the piston was slapping around a bit or more likely the valves were really loose. Anyway that's about all I can come up with for the time being. this is the 3rd time I've written this post because TT doesn't play nice if your away from your PC and get logged out and try to submit the thread Anyhow, thanks for any help you can give me!