I tried searching but didn't see what I was looking for. I'm pretty sure this has been covered I just can't find it. I live in Ca and I'm really getting frustrated w/having to work around the red sticker law. I can't go riding w/my friends for about 3-4 mths of the year. I want to be able to ride anywhere anytime of the year with 1 bike. So, is it feasible to modify the new 07 WR450 to handle Motocross, i.e. tracks. I wanna bike that can take everything I do with my YZ250 but on a WR. I ride maybe 60% trail but I prefer tracks w/big jumps, whoops, rythm sections etc. The lights are an easy fix and I think the suspension can be revalved and resprung for a MX application. What else needs to be changed? Is the engine similar? I don't mind smooth motors but is the WR detuned? What about gearing? Can sprockets fix that or do gears need to be swapped? I may keep the magic button but how much weight does this add and would this compromise performance on the track? I'm a C level rider in the amateur scene so I don't need some crazy racing bike. Am I missing anything else as far as modifications go? Are there things different that can't be changed?