Originally Posted by
Salamandrine
The fact that it's only making the sound when your weight is on it tends to indicate that it's a spoke/nipple issue -- but of course there are exceptions to everything. It could also be other things like spoke hole eyelets creaking. Have your guy check it out. Like I said, 10,000 miles is about a standard life wheel life for road wheels before a rebuild IME. Double butted spokes will go a bit longer.
I finally figured it out! Tire, the tire of all things! A Big Apple with 5000 miles, it looked pretty good still but the inside had totally broken down. We pulled it off and it was like a wet noodle. Weird. Anyway, I'm used to riding Schwalbe Marathon's until the tread is gone.
Thanks for the responses!