(I didn't want to hijack the "CR250 or CRF250?" thread or derail it more than it already is, so I thought I'd start a new topic.) OK, I know that two strokes aren't dead yet, but... I've heard from various sources that claim it was the EPA, the AMA, or Honda that decided to kill two stroke motocross bikes. I've also heard from a bunch of thumper riders that say two strokes are old news purely because four strokes are easier to ride and are faster around the track. As a retort, two stroke fans will say that it takes skill to ride a two stroke, and that two strokes are way easier and cheaper to maintain. There are great arguments for, and great arguments against, both two strokes and four strokes. Does anyone have any actual evidence about the EPA, AMA or Honda or are we all just a bunch of opinionated whiners repeating unfounded accusations?