Heh. I lead rides for my club. This Fred would come on some of rides and always have the most annoying clicking/cracking coming from his rear wheel. This went on for at least two seasons. Nothing like hearing that for nearly 100 miles. He claimed the shop could not find the source. This guy is cheap. I think he just never had it looked at in depth. I finally told him, half in jest but half seriously, that I didn't want him on any more of my rides until het got the damn thing fixed. He finally got it fixed.