Shimano front derailleur compatibility with my shifters- 9/10 sp?
I'm fixing up/building up my Jamis Quest Femme and need a new front derailleur. I have ST-R700 shifters (Ultegra level 10 speed) and a FC-700 crank (also Ultegra level 10 speed, kind of an Ultegra predecessor). Rear is all matching 10 speed as well (6600). I happen to have a 6500 front derailleur which was made for Shimano 9 speed systems. Does anyone know if I can use this derailleur or should I buy one specifically for a 6600 or 6700 10 speed groupset? I found some compatibility charts online but didn't really help with the 6500... maybe front derailleurs aren't so picky?
Specialized Sequoia Elite/Motobecane Fantom Cross Team Ti/'85 Trek 520
I was kind of wondering about this issue myself. I happen to have a couple of older somewhat decent Suntour front road derailleurs. Is their pull ratio the same as more modern Shimano road front derailleurs? In other words, would those old Suntour derailleurs work fine with modern indexing STI shifting, say 7 to 9 speed era components? These Suntour derailleurs are for doubles, not triples. Just kind of would not mind making use of them if the need arises.