Joined: Sep 2011
Posts: 3,372
Likes: 598
From: Baltimore MD
Bikes: '72 Motobecane Grand Record, '72 Gitane tandem, '72 Raleigh Super Course, '73 Raleigh Gran Sport, '73 Colnago Super, '76 Fiorelli Coppi, '78 Raleigh SBDU Team Pro, '78 Trek 930, '81 Holdsworth Special 650B, '86 Masi GC, ’94 Bridgestone RB-T
Maybe get a sacrificial top nut, cut it in half into two "C"s, then clamp those around the threads below where they are damaged, and then just unscrew it.
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The man who dies with the most toys…is dead. - Rootboy