I got another noise issue, I recently changed my rear der. from the mirage (9 speed) that was on it to a veloce, (9 speed). Since I am stuck riding on the stand ( cycle-ops mag trainer) I have more than enough time to notice all the odd noises. Since the rear der. swap I notice that the drive train is noticeably noisier (chain noise I believe, like the links hitting the teeth on the cogs and sprockets.) It is not a clatter like the chain rubbing on something. It shifts like a dream, is adjusted properly, the indexing is perfect it just runs a little noisier....The chain is not worn according to my Parks guage and it is well lubed....I have a PC69 chain (same as I have been using for years). I am wondering if I should switch to a campy 9 spd chain. I do know that the rear roller on the mag-trainer is a little noisy (going bad-noisy) Could the souund be telegraphing through the stand to the frame so that it sounds like the bike?. I took it in to the LBS and had it on their stand...I didn't hear it then. The tech cleaned and lubed the cassette and hub-thing. HELP....... I have tried to rule out everything...and at 53 I highly doubt that my hearing is just improving.