Whatup, y'all: I've got Bontrager RaceXLite's on my mountain bike and have a weird clicking sound from the free wheel. The ratcheting sound from spinning the rear wheel oscillates in volume from louder to quiet and then repeats back and forth. The faster I spin it, the faster the loud/quiet cycles. Can anybody tell me what's going on? Do I have a major problem here? Thanks in advance for your input.