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Old October 12th 15, 03:00 PM posted to rec.bicycles.tech
Sir Ridesalot
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Default Correcting a cross-threaded bottom bracket?

On Monday, October 12, 2015 at 9:44:49 AM UTC-4, John B. wrote:
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.


I'm taking the frame to a shop tomorrow(closed today due to it being Thanksgiving Monday here in Canada) and see what they charge to chase the threads.. The threadless bottom braket might be the easiest way to go though. It's a very nice frame ideally suited for conversion to a drop bar touring bike for fire/logging/mining roads touring.

Cheers
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