6, 7, and 8 speed chains are all the same One width chain . At least any SRAM , KMC, Wipperman and Shimano are . Some derailers with their indented plates simply leave little room for lateral movement. You crank is likely less than perfect straight , they all var slightly. Some much worse than others .
Sometimes playing with the angle of the FD cage can help, this is trial and error in a workstand. Sometimes not. FWIW, I like the less or no indented old Shimano FD. Like early Deore's . However, I use a Shimano 105 double from around 1999, FD-5500 I think, anyways any Shimano double on the lower end , like Tiagra(marketed as 8/9 speed) , works fine with triples. I have it on a 24/36/50 XD crank on my road bike . It shifts fine . Double FD cages are relatively straight, with minimal indentations inside the plate , so they have more room for lateral play . Plus, they just shift great ! -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
