Join Date: Apr 2010
Location: Sunnyvale, CA USA
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Sometimes there are differences, sometimes it's just a little ink or other cosmetics.
Chorus derailleurs at the tail end of the 8 speed era attached the lower pivot with a bolt. Athena derailleurs have a stud with a E-clip. The bolt is harder to loose and easier to reassemble when you take it apart to clean the pivots.
Last edited by Drew Eckhardt; 08-03-12 at 10:53 PM.