"Sly" Parker, was Re: [CR] Campy G.S. BCD and smallest Chainring size


Example: Framebuilding

Date: Wed, 04 Jan 2006 10:49:57 -0500
From: Harvey M Sachs <sachshm@cox.net>
To: gpvb1@comcast.net, avitzur@013.net, Classic Rendezvous <classicrendezvous@bikelist.org>
Subject: "Sly" Parker, was Re: [CR] Campy G.S. BCD and smallest Chainring size


Amir - I'd watch out for that Parker guy's advice. :-) Here he's trying to push Nervar at you, without noting that the Nervar Star (5-arm) has about the rarest bolt circle in the world (128 mm). And the Zeus 5-arm? You bet, a unique 120 mm. BCD. But at least the Nervar 5-pin was industry-standard. If I recall correctly, I once tried to mount TA cyclotourist cogs on a Zeus 5-pin, but the bolt circle was wrong... Although Sutherland says it is the same.

It was a (proprietary) jungle out there, full of sharp teeth (particularly on old chainrings?) and quicksand. Just grateful we have some folks like Greg P. who are trying to keep us supplied.

Harvey "would Zeus give me strength?" Sachs mcLean va. ++++++++++++++++++++++++++++++++++++++ Date: Wed, 04 Jan 2006 00:35:04 +0200 From: Amir Avitzur <avitzur@013.net> To: Classicrendezvous <classicrendezvous@bikelist.org> Subject: [CR]Campy G.S. BCD and smallest Chainring size

What is the BCD of Campagnolo's 5-arm G.S. crank set? What is the smallest Chainring that will fit in that crank? Where can I find such chainrings?

Amir "not-a-Campy-fan" Avitzur (but I do love their shiny chrome steel headsets) R"G Israel

144, and 41. All over the world.

Or, some later "touring" ones were 116 and 35. Much less common, though, so chainrings are not so plentiful for those. I only have 52 and 53 left now.

All of that old Campagnolo stuff is junk, though. You may want to go with a Zeus or Nervar crank instead. ;-)

Greg Parker Ann Arbor, Michigan

(Pssst... The NR/SR headsets were the weakest parts in the whole lineup! You should see the rest of the groups!) (But you didn't hear that from me, capiche? Mum's the word...).