Quote Originally Posted by Lisa S.H. View Post
This may sound nuts, but I had that wierd pinging sound in both my wheels when I put new different tires on that had a higher suggested tire pressure marked on them. I pumped the new tires up to their maximum air pressure and the spokes started making all these weird little sounds, creaking and pinging. My LBS did not hear them either.
The sounds gave me the creeps and I backed off the air pressure by 10 pounds, and the sounds suddenly went away for good. Just my own experience and who knows, but maybe worth a try?

I'm always a bit of a weenie about pumping up the tires, and I tend to be a little conservative about it. I did, however, get new tires which will accept higher pressures about the same time. The old ones were pumped up to 95-100 psi and the new ones to 100-120. Hmmm. It's something to check out...