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b/b cup wiggles in frame. . . . help!!(5 posts)

b/b cup wiggles in frame. . . . help!!joe friday
Oct 1, 2003 5:02 PM
just got finished putting a cheapo steel b/b cup
in a used aluminum frame and without a lockring, it
wiggles! it appears that the frame threads may have
been chased too much? any suggestions/ideas as to what
i can do? thanks!!
May not be an issueKerry Irons
Oct 1, 2003 5:28 PM
Why didn't you use a lock ring? A steel BB cup suggests loose ball bearings, not a cartridge unit. These cups were made to use lock rings - they won't stay in place without one. If by some possibility it is a cartridge unit, then it might not have needed a lock ring when everything was tightened to spec. More info?
Are you lucky!Spoke Wrench
Oct 1, 2003 5:44 PM
It sounds to me like you have an ideal donor bike. If it was mine, I'd transfer all of the components onto a $39.95 Nashbar steel ATB frame.
with the lockring the cup would be snug but..joe friday
Oct 1, 2003 6:59 PM
the cup shouldn't wiggle loosely in the frame without it-
should it? understand this is JUST THE CUP, no spindle,
weight applied etc.. the cup is for loose balls-in a
retainer- my intention is to order a good cartridge b/b, but that
won't be for another week
A certain amount of wiggle is not a problemKerry Irons
Oct 3, 2003 3:22 PM
It's really not possible to tell from your description if you have a problem. As a cross check, you might ask an LBS to fish a cup out of their junk bucket and try it in your frame. If it behaves the same as the cup you have, then you know it is the frame. Whether the amount of play you have is a problem is open to question. There's a range between hard to thread in and too loose - I'm guessing you're worried over nothing.