OK. So Ive done some reading on other threads and it seems i think i know the noise I'm hearing. I just did a new front sprocket rear sprocket and chain. (520 conversion). Anyway, I noticed a whirring noise in pretty much all rpm. I have read that it is because there is no dampening stuff on the aftermarket sprockets and i have also read it could be the new chain wearing into the new sprocket. I had a dealership do the install because i really didn't have the time to do it myself so it should all be done right. And the chain isn't too tight ether. It seems to shift fine and ride great just hearing that whirring noise. Should i just get used to the noise or???? Thanks guys! Oh BTW its a 2003 GSX-R 600.