Originally Posted by Stoopidbot

They are very equally powered. In mx racing they would be in the same class.

Originally Posted by ss97

Actually they would not....... the 250cc 2-stroke would have to compete with the 450cc 4-strokes. While the 250cc 4-stroke would compete with the 125cc 2-strokes....... that is how the AMA designated it when the two used to mix.....

Nowadays there are no 2-strokes racing in AMA pro motocross at all so the point there is moot..... However there are still a few 2-strokes left in GNCC racing, and even there the 250cc 2-stroke races in the 450cc class.....

Originally Posted by ss97

True...... one will get there much quicker, and as you state RPM will vary the top speed slightly......but overall you are only talking about a couple MPH difference......

All things being 100% equal, including rider weight, skills, gearing etc...etc...... The 250cc 2-stroke would be much quicker than the 250cc 4-stroke. It would hit top speed faster....

However, the 250cc 4-stroke could equal the same top speed once both are pinned. It could not close the gap that the 2-stroke creates while getting to top speed.....

I should have been more clear but I was speaking in direct final numbers....

Originally Posted by midcity mudder

There is no crf 250, but there's a crf 230 I have one and no it will not outrun a 125 2 stroke but the 230 is a good bike, no complaints at all but a little shy for me on power I bought that bike for my fiance she always wanted one. the 250 honda on the other had get ready because it pulls like mad my buddy has a yami 250 4 stroke liquid cooled motocross same class is the honda 250 and I positivily sure that it will smoke the 125 2 stroke