Thanks to recommendations on this list (and from looking at Analog's article <https://www.analogcycles.com/2018/03/30/get-your-clutches-into-turkey-vulture-supreme-gearing/>) I ended up with: 46/30 front rings on Velo Orange double crankset with Shimano RX100 derailleur 11-40t sunrace cassette 9 speed with Shimano XT long cage derailleur (the LX also worked)
*Huge range (exactly the same as my prior 46/36/24 triple and 11-34t cassette*), normal and widely available derailleurs/cassette, and similar cranksets can be found for less than $100 (though not at pretty as this shiny VO model that's not available anymore). When cross chained small front, small rear, there's a chain rub on the teeth of the large chainring which some .6mm spacers will eventually correct, but for now it doesn't happen that I'm ever cross chained that way so no problem! Abe "in a valley where he wants range for flats and hills" On Friday, March 13, 2020 at 11:41:37 AM UTC-7, James / Analog Cycles wrote: > > We've run 46/20 with a 12-36 out back with fine success. Middleburn lets > you run a 110 big ring, no middle ring and 58 bcd granny gear for said > combo. Friction shifts fine with TA rings. The resulting gear range is > super wide. 690% gear range. > > -James / Analog Cycles / Tanglefoot Cycles / Fifth Season Canvas / Discord > Components > > On Friday, March 5, 2010 at 5:38:42 PM UTC-5, Bill Lindsay wrote: >> >> I'm running Ritchey/Sugino cranks on my Hillborne and another set >> waiting for me to pay off my Bombadil. These are 94/58mm bolt circle >> cranks. I love them and would but 5 more sets in 172.5 if I could. >> They both came with 22/32/42 chainrings. I am running the Hilborne >> right now as a wider range triple: 22/34/46. The cranks that are >> going on to the Bombadil were last used as a double on a cyclocross >> bike and worked great with a 30/44 with Campy ergo brifters. I'm >> wondering what's the biggest jump on a double you've run. Kevens >> dream Bomba has a 24/40, for 16t of jump. 34/50 is standard on >> compact road cranks nowadays. I'm thinking of trying a 46/29 on these >> Ritchey arms. I've never run TA or TA-style cranks that I think allow >> even more flexibility. Has anyone ever run a 20+ tooth jump between >> two chainrings? >> > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/9f6e11f4-80fa-4aae-bf1a-5bf0c8fa39b8%40googlegroups.com.
