Hi all, I've just bought a set of radius gauges to help with the ID of Campagnolo & C Record BB cups bearing sizes, I've been told that the early C Record ones take the same ball size as SR. The set I bought are Moore & Wright cat #204, cost about US$27. Not used them yet as will need to hunt thru all my BB cups and have a play, should work OK and be quicker than setting up BB in an old frame to check.........regards wayne davidson Invers NZ........