I've had my CycleOps with Resistance rollers for about 2 weeks (~50miles total on it). It was relatively quiet the first 3 uses, over the last 2 times I was on it, there's a high pitch squeaking sound that only occurs on the downstroke when I'm mashing the pedal.

I've checked all the screws, and everything is tight. The squeak is there consistently there on every downstroke, regardless of resistance level or gear that I'm in. It's driving me crazy!

My only thought left is that my rear wheel is worn down to a 1cm wide flat surface, so I'm thinking maybe the increased surface area causes more rubbing??

Any ideas?