Originally Posted by
maleemi
I'm .. looking for a replacement derailleur that will work with the Shimano S-242 SIS shifters. will any SIS compatable derailleur work or do I need to find a 6 speed model in order for it to index correctly?
Shimano RDs aren't picky, as a rule. There
might be an issue with chain width if you were to go for a 9-10 spd one, but a lower-end 7-spd should do fine. Don't worry abt the indexing, that's all done by the shifter.