I currently ride a rebuilt 93 CR 250 with a stock pipe and like it pretty well. I'm looking to get a newer bike and am in a battle between buying a 450 4 stroke or just getting a newer CR. I know of a real nice 2000 CR 250 with a pro circut pipe on it and the thing screams. I could prolly get a pretty good deal on it. What changed on the CR's from 2000 to now? Any advantages for any certin years? Thanks.