I use a 103mm ird with 42-26, sort of a 1x plus bailout setup. Works well, but the front shifting is somewhat dependent on where on the cassette the chain is. I like the low q and quasi 1x chainline.
Austin On Tuesday, December 3, 2024 at 6:03:20 PM UTC-8 isp...@gmail.com wrote: > For a Rene Herse double crank (46-30) on a trad’ish randonneur (130mm rear > spacing, 700x32mm tire clearance + fenders, straight chainstays not > curved)… what actual BB spindle lengths have people had success with? I’m > aware of the RH charts… one chart suggests 110mm and the other chart > suggests 107mm - so I’m more curious about actual experience ‘from the > field’. > > > Origin of my inquiry… poor FD shifts (FSA/IRD “compact double”, I’ve tried > them both)… either it throws my chain beyond the big ring and onto the > crank arm… or I limit its travel and it won’t shift big at all. The narrow > Q on the RH crank arm minimizes any experimentation with FD cage angle. And > my cage sits just a mm or two above the big ring, akin to Shimano’s > alignment sticker. So now I’m wondering if my 113mm spindle puts the FD > cage too far out in its swing. I could easily fit a 110mm spindle, and > probably 107mm based on eyeballing clearance to the chainstays. Maybe > shorter spindles would improve FD throw/alignment? Thanks in advance for > any thoughts on this wandering missive. > -- 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 visit https://groups.google.com/d/msgid/rbw-owners-bunch/a3c6adb9-bf43-4e16-98f3-6cd4601db2fdn%40googlegroups.com.
