Re: [RBW] Re: Gus front derailleur reccomendation needed

[Jacob Byard]

In my notes I had 123mm written down. So who knows how I came up with that. I have notes everywhere. Like a crazy person. I’m ordering a 113mm now and will swap it out. Going narrower will probably help my knees too.  Cheers, Jacob Sent from my iPhone On Dec 3, 2022, at 7:44 PM, 'Scott Luly' via RBW Owners Bunch <rbw-owners-bunch@googlegroups.com> wrote: A spindle length of 107mm should give a chain line of 47.5mm (which is kind of standard, if I'm not mistaken) and 113mm a 50mm. I run a 113 because I like to run my rings a scratch more outboard. I'm not a subject matter expert, but a 123 BB sounds very long for a triple set-up, or even double. Service Instructions for my Shimano FDs indicates recommended chain line for various Shimano BBs and 123 isn't even on the list. I can double check when I return home and send you the chart I have. Sent from Yahoo Mail on Android On Sat, Dec 3, 2022 at 5:18 PM, Jacob Byard <jacob.by...@gmail.com> wrote: I just checked and it’s a 110 BCD on the big ring. I’ve got just under .5” of clearance if I’m in the small/ big combo. So I should be fine swapping in a narrower BB.  I’ll see about picking up one of the m737 or m563’s  Thanks for the help!  Cheers, Jacob Sent from my iPhone On Dec 3, 2022, at 6:46 PM, Justus G <cjust...@gmail.com> wrote: If you look for a good condition old stock XT M737 or LX M563 you should have a perfect match for your ring sizes, a small/short enough cage to not hit the stays and enough range for the triple.  I am currently using this setup with a 110/74 Ritchey Triple that I run with a Phil ~119mm BB.  But you may not need a new FD anyway. Is your crankset the Ritchey Logic 94/58 Compact?  If so, that is meant to be run with a 110-113mm BB so if that is the case my concern is you are out of range due to the extra length which will also effect chainline.  My recommend is to measure and see if a 113mm BB will work (need 5mm vs what you have now to tire) and go to that.  Perfect chainline.  Great Q-factor.  Prefect.   On Saturday, December 3, 2022 at 4:57:38 PM UTC-6 jacob...@gmail.com wrote: Hello good people, I'm finishing up my Gus build and the front derailleur from my stash doesn't work. I'm using a triple crankset (42/32/22 Ritchey) with a 123mm bottom bracket. 9 speed in the back and a 2.25" rear tire. I actually bought a Shimano FD-M780 but it was the braze on style (mistake on my part). When I got the clamp in and everything mounted it didn't seem to have enough throw to push into the big ring. I'm pretty confident I had everything installed correctly. The Skeleton Key FD on Riv says a 118mm BB.  If I change the BB to something narrower will I run into tire clearance issues? I don't plan on going larger but it would be nice to have the option. Thanks for any insight! Cheers, Jacob -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/b8d54474-fb6f-46a9-a187-9a30254d9986n%40googlegroups.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/A92791CB-6880-483E-8B50-39F26299BE04%40gmail.com . -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/1179663755.673016.1670114680232%40mail.yahoo.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/0E97B3FA-DD7E-4AF6-A707-9D752B288F18%40gmail.com.