Older Campy Record hubs that have Italian threads are unmarked. I think the English ones have a single engraved band just inboard of the freewheel thread shoulder. I don't recall what the French marking was, but it may have been two bands. The details can be found in Sutherland's.
Later, Campy specified the threads with the nominal dimensions and country (e.g. 1.370 x 24tpi - England) engraved inboard of the FW.
I don't have anything like a close date for when this change took place. Sometime in the mid 70's, I guess. This is one of those things that makes finding "correct" hubs for older bikes a lot harder than one might think. Slapping flat QR's on a late 80's set of Record hubs is not always enough.
Tom Dalton Bethlehem, PA, USA
From: "Tom Sanders" <tsan7759142@sbcglobal.net> To: <classicrendezvous@bikelist.org> Subject: [CR]Freewheel threads on hubs...when did they start telling us what the threading was? Message-ID: <002201c741b2$4970c5a0$b0f0d045@ts> Content-Type: text/plain;charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: list Message: 15
I just rebuilt and polished up a lovely set of high flange Tipo hubs. They had a Cyclo '64 five speed freewheel on them, so I am assuming them to be a French thread, but I see no such designation on them. Is there an easy to tell the threading on hubs when it is not specified on them? When did Campagnolo start telling on the hubs what the thread scheme was? Tom Sanders Lansing, Mi USA
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