here is a link to an MXA article that is very relevant to this thread. they say the blame lies with the track builders. very interesting. http://motocrossactionmag.com/ME2/dirmod.asp?sid=&nm=&type=news&mod=News&mid=9A02E3B96F2A415ABC72CB5F516B4C10&tier=3&nid=10D1F413F2F84D2C8FC4FB4111D0794B Nice find! “It is easy for the AMA to say that the bikes are too fast, but in truth the real blame for the short lap times (and any resulting injuries that are speed related) rest solely on the AMA’s shoulders. The AMA’s idea that there was such a thing as “a four-stroke track” is what has changed the face of Supercross. They need to find better track designers and builders than they currently have (proven by what happened when the Live Nation Supercross track builders ruined Daytona this year). Build real, true-to-life, Supercross tracks and the speeds will come down...and the lap times will go back where they belong.” I agree with this to a point, except that the argument is inherently flawed as it is circular. Sure, we can blame it on the track builders, but as the quote points out, the tracks are built that way to accommodate the 4 strokes – which is what the AMA and the manufacturers decided it was time for us all to buy, so that they could double their money. It was short sighted though, as everyone opposed to the “four stroke revolution” pointed out. The increase in initial cost, repair cost, parts, the noise and overall increased barrier to entry will hurt the sport. A few years later the FIM and AMA see dwindling numbers of new riders entering the sport, dwindling attendance and tracks closing down and they realize they blew it. Now they have to fix it. It's bad b/c it renders our current bikes totally useless and I can't afford to buy another bike. The one I have will be worth nothing and all the money invested in it will be lost. If I couldn't race my 450 , then I wouldn't be able to race at all, and that sucks. Well, that’s what happens when the market isn’t allowed to dictate and arbitrary indicators are believed. The four strokes popularity is based around rules that give them the advantage, and that can only force the market for so long. Glad I’m not a band-wagon type of guy. Of course, I was never in the spot you were, as the AMA couldn’t force my buying decision – I don’t race a class where it really matters.