I just noticed this after picking the bike up for its initial service. At about 40-50mph I hear a "whining" noise coming from the bike. It's almost like a gear whine, but its loud enough that I can hear it clearly through my full face helmet, even over the wind noise at 50mph. It does it when cruising with the bike in gear, as well as with the clutch pulled in. It also doesn't seem to matter if I downshift (keeping the clutch in), or stick it in neutral. As I slow to a stop the noise gradually gets more and more faint (but is still present until I stop). Is this normal for these bikes? It may very well be something that it was doing before I took it to the shop but I just didn't notice it. I rode the bike about 30 miles before I got a chance to check it all out. The next morning when the bike was cool (before riding again) I checked the chain tension (with the bike on the sidestand). There was maybe 1/8" to 1/4" of play at MOST in the chain. This was checking the play at the middle of the bottom side of the chain. I readjusted the chain according to the shop manual, and rode the bike again. The "whining" noise was still present. Much like my other "stupid question", I am guessing that I am just being paranoid. However, I'd rather be safe than sorry, and not find out the hard way that it was an issue as something comes apart at 100+mph.