</font><font color="blue" class="small">( I will tell you if you are used to riding the old XR model four strokes and think this bike will be the same you could not be more wrong. They are totally different. Example: an old XR 400 could not even get a whiff of a CR250 two stroke in any type of racing. Now the CR 250 two stroke is getting smoked by the CRF 450 four stroke. Just check out the pro supercross riders this year. Every single one of them went to the 4 strokes this year.)</font>
That's what I hear and would love to ride one of the new 4 strokes. It may give my age a bit, but I began racing on an XR75 Honda when they first came out. A couple of years later Yamaha went to something completely new called a 'monoshock' rear suspension and changed the color of their racing bikes from gray to yellow. I then went to a 2 stroke YZ125 in that 'new' configuration. I then raced several different classes and also ran some Honda CR's, Suzuki RM's and even some Kawasaki KTM (I think) bikes. The thing back then was that nobody competitive ran a 4 stroke.
I did run flat track a few times and used a friend's BSA 500 thumper. It was pretty fast, but flat track does not require the same snap as motocross. Anyway, I've been watching the supercross races for the last few years and have been amazed to hear 4 strokes out front. /forums/images/graemlins/shocked.gif No doubt, they have come a long way since they were totally dominated by the 2 strokes.
Oh yeah, back then, only street bikes had the magic button. I was shocked a couple of years ago to see a guy start his bike, that I would consider an enduro bike (I wonder what bikes like that are called now?), with a magic button. Heck, when I got out of racing, I was one of the only guys to be running the new fangled liquid cooled head, and I only was able to do that because I had a sponsor. It looks like everything is liquid cooled now.