by the way you are describing the tinging sound and how it changes with temp, mine has made the exact same sound since day one. properly broke in and still does it at 4600miles. i took it to two different shops at 1000miles and asked them to ride it and listen. both said that it was normal and they didn't hear anything out of the ordinary. i made sure both techs were familary with TLRs and both times they took me out back to show me theirs, so i was a little more inclined to trust them. does it do it all the time or just under acceleration and upper Rs like 7-8K like mine? really anoying untill its warmed up so now i wont leave the driveway untill it is fully warmed up.