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Loose Bottom Bracket ?


jake tanner

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Ite HELP PLEASE,

basiclly I was riding my bike tonight when and after a while I heard a loud click noise, I stopped to check it out and my bb was wobbling about in the bb shells and my chain was really loose then when I was moving the cranks back the freewheel seemed to tighten up then the bb stopped wobbling, but then the freewheel clicked again and the bb when losse again. Do I neeed a new bb or can this be fixed?

cheers jake :)

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In most cases yes you do need one,but you could try to use mole grips for that,but put some cloth on the left side or you will damage the threads.

What! The threads are inside the frame, your doing something wrong if you can fit mole grips around them.

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Shimano style BB cups doesn´t have anything else on the outer side of the left cup(unlike right cup which have this "lip" you can grab insted the actual thread).Another option is to use flat screwdriver and hammer to tighten it,it´s not perfect solution but it will be good enough fo show you if the wobble is caused by BB being loose or not.

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that's an option I'd never take, if it's loose the threads on either the cups or shell are probably bolloxed, in which case hammering them will only bollox them some more. take the bb out and take you frame to a shop and get the threads cleaned up with a tap. then buy a new bb just to be on the safe side. that way the threads will be good and fresh. use a light dose of grease to aid entry

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