[CR]altenburger champion derailleur

(Example: Framebuilders:Mario Confente)

Date: Mon, 21 May 2007 11:44:25 -0700 (PDT)
From: "simon bird" <simonandonandon@yahoo.com>
To: classicrendezvous@bikelist.org
Subject: [CR]altenburger champion derailleur

acording to berto's 'the dancing chain, "the 1955 altenburger champion rear derailleur had a horizontal parallelagram to maintain a contant chain gap. this was an effective design that was used by the german teams in the tour de france. it was sold in britain as the gb altenburber". (my lack of capitals)

illustration is identical to derailleur in photo of ebay cinelli.

elsewhere berto says altenburger bought the patent for horizontal pivoting rear derailleur in 1950 fron nieddu, mariani and blaser. a front derailleur was added 1951, production ceased about 1960.

earlier than i would have guessed based on aesthetics/design.

simon bird
peckham
london
england.