[CR]Quiz - what's with this? - Answer!

(Example: Books)

Date: Sat, 31 Jul 2004 23:24:49 -0400
To: classic list <Classicrendezvous@bikelist.org>
From: "Roy H. Drinkwater" <roydrink@ptd.net>
Subject: [CR]Quiz - what's with this? - Answer!

Thanks for the responses.

The Campagnolo crank's 151mm bcd (old) spider holes have been modified to fit 144mm bcd (new) chainrings. (I don't think you could modify 144 to 151, there's more metal on the 151's)

Why do something like this? Easier selection and availablity of 144 bcd chainrings. A better example can be seen in the sixth row of <http://www.bikecult.com/works/chainring.html>, Bike Work's excellent chainring site.

Roy "back from track racing class" Drinkwater Lititz, PA