[CR] Inner ring for early Campag triple.

(Example: Framebuilders:Rene Herse)

From: "Alfredo Marcantonio" <alfredo.marcantonio@btinternet.com>
To: <classicrendezvous@bikelist.org>
Date: Tue, 1 Sep 2009 07:50:38 +0100
Subject: [CR] Inner ring for early Campag triple.


Hi All

I am getting my old Hetchins ready for the Eroica. For the inclines, I am inclined to fit my nice Campag Triple.

Trouble is, right now it is presently a nice Campag double. The inner ring is long gone. I have tracked down a set of the necessary bolts.

Does anybody have an inner ring? Or know where or how can I get one?

The Chainset appears to be the one shown in Catalogue 17.

See http://www.campyonly.com/history/catalogs.html

Catalogue 17, Chainset part no. 819

Inner chainring part 804. This would appear to be available in 36 teeth only, which would be OK.

Using the Harris Cycles method of measurement (measure between fixing bolts on 5 arm cranks and multiply by 1.7) BCD of the threaded holes represents 60mm x 1.7 = 102

Although from the CR correspondence archive I note that a "Bicycle Mechanics" figure of 100 is mentioned.

ALSO

I understand I will need to swap my regular Nuovo Record rear mech for a Rally version. Has any body got one for sale or swap?

Thanks

Alfredo Marcantonio.Twickenham. Nr London.
England.