I have been meaning to ask the group about this for a while but I keep forgetting. With all of the periodic talk regarding broken cranksets I have been reminded once again. I am running the original equipment Normandy Luxe (gold label) high flange hubs on my mid '70's PX10 fixed gear bike. The last few times I've ridden the bike I have noticed a pretty substantial "warping" of the drive side flange on the front hub. Weird because the wheel spins true (though not very smooth). The question would be is this something to worry about? Is something catastrophic about to occur? Thanks, Richard Rose (Toledo, Ohio)