I've been riding since 1980 when most of you kids were just thoughts swimming around. Perhaps the most powerful bike on the planet is the KX500. I purchased the first one in 2003 after I bought a New Kx250. The Kx250 couldn't hold a candle to my beast. I will be posting pictures of my rebuilds.
PS I rode 4 strokers but always prefer the "Modified" on / off switch of the 2 stroke power band.
I'm now a collector of fine bikes and the KX500 is on my menu.