Well, as some of you know I just got a new specialized P.2. And its making an odd sound, kind of like a rubbing sound in the crank. I thought it was coming from the chainguide and the vibration was just travelling through the frame, making th sound. I loosened the chain guide, and tried the pedals and it still made that rubbing sound. It gets loud when I go really fast, it doesnt appear to be performance threatening yet, but I fear if it is serious, then something will break.