I just got some new bars - Ritchey Biomax - to replace the Salsa Pro Road bars I had. Now there is a constant clicking/ticking sound that seems to be coming from the bars in the vicinity of the stem clamp. I had no such noise when I had the Salsa bar on there. The stem is a Thomson Elite with a 31.8 clamp. Is the noise coming from the bars themselves, or is it created by the bars shifting in the clamp? Will a little grease shut it up? Is it ok to use grease at the clamp or will it allow the bars to shift?