Hey - recently picked up a used bike that had new wheels on them and noticed that the front hub appears loose on the axel. What I mean is that if the wheel is on the bike and skewer tight if I push the wheel (spokes or rim) the hub moves slightly on the axel. Not much, maybe a sixteen of an inch or less but it does move smoothly and evenly. My other bike (that has nicer wheels) does not do this and I don't know if this is a problem or just the way these are made. . .btw, the wheel spins fine and smoothly and is true.