i am servicing the (shimano 105) brakes on my 2007 Specialized Roubaix, and the rear wheel won't stay centered when i clamp the skewer.
it seems fine with no skewer, or with the skewer loose, but when i clamp the skewer, the wheel cocks to one side by several mm - maybe 3 to 5mm.
my brake issue was that the pad on one side was rubbing intermittently - i ignored it for a while, and then couldn't anymore, as there was basically no pad left on that side. i have already taken the pads off, so i'm not sure that the side to which the wheel cocked was the side that was wearing, and when i took the brakes of the bike, i noticed that the whole assembly was loose on the bike, so the brake wear issue may or may not be related to the centering issue.
anyway, the question is...: what do i do about the centering problem?
should i just try a new skewer?
the skewer i am using came with my Neuvation wheels, and i can't seem to find the one that came with the bike, so to try it i have to get a new one.