The test case for such a narrow gap is the old TA Pro 5 Vis -- I hear that the new ones have a wider gap. I have an old one on the Ram and use an old 7400 Dura Ace FD, which works fine. The downside, such as it is, is that, at least with the small gap on the TA, it requires great precision in fd adjustment to ensure, together, proper angle, proper height, and proper throw, and, at least for me, I reached this precision only through much experiment. Installing an old early '90s XT drivetrain, or an old Stronglight 99 with any '80s or '90s road derailleur, on the contrary, was always perfectly easy by comparison.
On Mon, Jun 3, 2013 at 2:25 PM, Jeremy Till <jeremy.t...@gmail.com> wrote: > It's my understanding that modern front derailleurs have relatively wide > cages to allow for a greater range of chain angles without rubbing the > chain, which leads to clearance issues with older, narrow-Q cranks. > Perhaps using a vintage derailleur of some kind might help? > > -jeremy > > > On Monday, June 3, 2013 11:45:22 AM UTC-7, Michael Hechmer wrote: >> >> My new Saluki came with a classy, classic Specialized crank. But I kept >> hearing a little clicking noise when in the big ring. Eventually I figured >> out that the crank arm was just grazing the edge of the (Campy Triple) FD. >> Adjusting it made it graze the chain. I went back and forth with this a >> couple of times. Stared at it and considered raising the FD a couple of >> mm. Then I measured the difference between the tooth and the inside of the >> arm - 8.5mm. Raising the FD should align it next to a thinner part of the >> arm but would also degrade shifting. >> >> I went around the shop measuring all the cranks on my and my wives bikes. >> Here's what I got: >> >> Shimano 600 -10mm >> Alpina 11.5 >> Ultegra 11.5 >> White VBC - 15mm >> DaVinci - 15mm >> >> Any suggestions, short of grinding the back of the arm? >> >> michael >> >> -- > 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 rbw-owners-bunch+unsubscr...@googlegroups.com. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > Visit this group at > http://groups.google.com/group/rbw-owners-bunch?hl=en-US. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- http://resumespecialties.com/index.html patrickmo...@resumespecialties.com Albuquerque, NM -- 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 rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
