Join Date: May 2009
Location: North Orange County, in Southern California
Bikes: 1986 Peugeot Orient Express, 1987 Trek 560 Pro, 1983 SR Semi Pro, 2010 Motobecane Le Champion Titanium, 2011 Trek Fuel EX 8
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Swapping Derailleur Cages?
I have a 1980's vintage SR Semi-pro with a Shimano 600 EX rear derailleur. That derailleur comes in two versions: short cage and long cage. The one now on my bike has a long cage. My largest cog in the rear is 27 teeth.
The pins/rivets that hold the parallelogram of my current rear derailleur are somehow loose, due to a crash, or just wear and tear, so that the parallelogram is no longer a true parallelogram, but rather is deformed. This causes the derailleur cage to be bent relative to the chain-line.
I scored a similar derailleur off eBay with the short cage; the pins/rivets on it are tight. Can I swap the cages? If so, how hard is that to do?
Thanks in advance.