Joined: Feb 2012
Posts: 19,354
Likes: 5,473
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Why should one company offer an internal duplicate to another's? They sell complete BB units complete with the NDS cup that works with their bearing/DS cup unit. They see no need to match the internal aspects of the cup to anyone else's. Cheapest path is to go back to the coop with that BB in hand and see if you can match up a NDS cup they might have. Andy
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AndrewRStewart