On Fri, 16 Jul 2010 08:35:34 -0400, LSMFT wrote:

zxcvbob wrote:
...on a bicycle that hasn't been used in a while. It doesn't look
rusty, but that's probably what it is.

Liquid Wrench, or WD-40?

Bob
WD-40, it will leave behind some lubrication to prevent future freeze ups.
Not as much lubrication as liquid wrench - and PB leaves even more.
Best bet is to use a penetrant to free it up, and a lubricant to
protect and lubricate it.