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Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,579
Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8
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Back in about 2010, I wanted to remove a fixed cup on my crashed Le Champion.
Tried a number of approaches most listed above.
I added another step, heat. Not on the shell but on the Sheldon brown fastener so the heat propagate from the center out through the cup. That did the trick. No paint was damaged event though the frame was bent up.
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