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I have removed the IDS from my bike. I had done this before because I was geeting a noticible rear wheel noise on the left side. I retourqued everything and put it back on. I removed it again for the same reason and pulley had a noticible wobble when I was checking everything. The bearing looks good and nothing appears out of whack that I can tell. I have a noticible wear point that you can see in the picture. I checked rear wheel alignment and all seems good. I placed the old pulley on and everything seems fine and true and the noise is gone. Anyone have any ideas what could cause this?