Joined: Feb 2012
Posts: 19,362
Likes: 5,501
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
It's my understanding that many of the Shimano external BBs have used the same actual bearings and the differences between the "grades" are the housing cups and their weight/finishes. Andy.