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Old October 12th 15, 02:44 PM posted to rec.bicycles.tech
John B.[_6_]
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Posts: 2,202
Default Correcting a cross-threaded bottom bracket?

On Mon, 12 Oct 2015 02:06:12 -0700 (PDT), Sir Ridesalot
wrote:

I was finally able to get the bottom bracket off of a friend's steel frame English threads bottom bracket bike. Whew what a job! The fixed cup cup was cross-threaded. He wants to put in a standard square-taper spindle cartridge bottom bracket. The problem is since the fixed cup was cross-threaded I can't get the new cartridge to thread in properly. Does a decent bicycle shop have a way to correct the cross-threaded threads in the bottom bracket shell? If so what's a ballpark price for doing it?

Thanks and cheers


Depending on how badly the threads are deformed it may be possible to
recut the threads sufficiently to install a new bottom bracket
bearing.

If that fails there are "threadless bottom brackets" that can be used
to repair it. Velo Orange, and probably others, sell them, see
http://store.velo-orange.com/index.p...-brackets.html
--
cheers,

John B.

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