Bike Forums - View Single Post - Sheldon Brown's fixed cup removal method
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Old 04-04-20, 08:58 PM
Mad Honk 
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Join Date: May 2019
Location: Bloomington, IN
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Bikes: Trek 770, Trek 760, Schwinn Peloton, Patelli Professional, Othon Ochsner

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Help this old stoopid brother out, and tell him what you are working on. There are a few work around as have been discussed here. Sometime I have seen outer races that have been worn to the point that the metal from the cup is stretched into the bottom bracket shell. These are the worst offenders, and even break apart during removal. Then you have to cut the old bits out with a Dremel tool. Then chase the threads before any reconstruction can begin. It would help if a pic was posted. Smiles, MH
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