So, per Tony Werne's suggestions, I took a look at the chart on the Bicycle Classics Web site. The info there is in accord with the stuff I sent out earlier. (Or vice versa.) But there is one one comment that puzzles me. Near the end of the chart, it says this about the Campagnolo bottom brackets: "There are four types: GS, Record, Nuovo Record, and Super Record (Ti spindle, Alu cups)."
I was only aware of 3 types. That is, I thought Gran Sport and Record were the same. Is it that Gran Sport and Record _cups_ are the same, but the spindles have different finishes? (Which would account for spindles to be used with thin-walled cups appearing in both black and chrome finishes?)
Or is there a Record cup, which is thick walled, but without the rifling? I've seen those from other manufacturers, but never from Campagnolo. Or if I did, it was decades ago - and I didn't notice the subtle differences - since I was merely content to fix and maintain bicycles for fun and (very little) profit. Fred Rednor - Arlington, Virginia (USA)
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