>How can one tell if a Super Champion rear derailleur is for a 3
>speed or 4 speed freewheel? Thanks for your help if you know the
>answer. :-)
The easiest way to tell is by looking at the indexing shift lever. The 3-speed version has 3 holes, the 4-speed version has 4 holes.
From what I can tell, the actual shifter fork on the chainstays was the same for both versions. I compared the photos of the Oscar Egg in "The Competition Bicycle" with photos of a 4-speed. While it might make sense to have a longer shifter fork for more rear cogs, the two shifter forks look the same.
Jan Heine
Editor
Bicycle Quarterly
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