Bike Forums - View Single Post - Is compression an issue with the read derailleur housing loop?

08-03-13 | 06:34 AM

#13

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Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Quote:

Originally Posted by Bianchigirll

Is this the derailleur your talking about? I don't think it is a Chorus but an early Athena. Chorus had a screw to adjust the "B" tension, Athena had the more common adjustable "B" tension insert like used on Victory.

Also you may want to get some dropout adjuster screws and move your rear wheel close to the front of the dropout.

The original Chorus from the Syncro days. http://velobase.com/ViewComponent.as...=108&AbsPos=25

The original Athena, again also from the Syncro days http://velobase.com/ViewComponent.as...=108&AbsPos=14

BG, minor point - the A and B markings are for rotating the parallelogram so that it can have a straight position like an NR or SR, or a slanted position like a SunTour. I think the slant parallelogram design was still under patent protection in those days, so companies had to be tricky about how they competed with it, or pay up to SunTour. Example: DuoPar.

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