See my contribution to the recent "Preparing Bleriot to Sell--Seeking Advice" conversation. Peter White (https://www.peterwhitecycles.com/tach.php) currently lists TA making odd-toothed chainrings for 110 bcd cranks and some others. Here is the abbreviated list:
GENERAL CHAINRINGS FOR COMPACT CRANKSETS 110mm Syrius 11 Speed Chainrings for Compact Cranksets Description TA Syrius 11 110mm 39 teeth black TA Syrius 11 110mm 53 teeth black 110mm Zephyr Chainrings for Compact Double Cranksets and Triples Description TA Zephyr 110mm inner 33 teeth black TA Zephyr 110mm inner 33 teeth silver TA Zephyr 110mm middle 39 teeth black TA Zephyr 110mm middle 39 teeth silver TA Zephyr 110mm outer 45 teeth black TA Zephyr 110mm outer 49 teeth black TA Zephyr 110mm outer 49 teeth silver TA Zephyr 110mm outer 51 teeth black TA Zephyr 110mm outer 51 teeth silver TA Zephyr 110mm outer 53 teeth black TA Zephyr 110mm outer 53 teeth silver So they are out there but getting harder and harder to find. That's part of why likely go to a 4-tooth difference on my next build. GAJett On Thursday, October 23, 2025 at 2:23:48 PM UTC-7 Patrick Moore wrote: > Where do you find rings in the 40-50 teeth range in odd teeth numbers? > > On Thu, Oct 23, 2025 at 3:19 PM GAJett <[email protected]> wrote: > >> I have ridden with a half-step+granny almost exclusively since about 1976 >> (thanks Frank Berto). I absolutely love these setups. My two current >> rides have only a 3-tooth difference up front (49-46-26 and 44-41-24). >> These are a converted 1974 Raleigh Competition and a 2010 A. Homer Hilson. >> Successful and reliable shifting has been done with a Suntour Superbe, a >> Suntour Cyclone, and a Huret Jubilee All worked without any problems, even >> the delicate Jubilee. I suspect that most older racing derailleurs would >> also work (e.g., Campagnolo, Shimano, Zeus, etc). >> >> Is anyone aware of any modern derailleurs that can shift over such narrow >> 3 to 5-tooth difference ranges? Mountain bike derailleurs have the >> necessary throw but the deep inner cages interfere with the middle ring >> while trying to shift to the outer -- so those are out. Descriptions of >> almost all the "racing" derailleurs are described as having a throw that is >> limited only to double cranksets -- so those seem to be out as well. >> >> So what are my options? >> a. Advice about specific "racing" styles that are known to work over a >> triple; >> b. Many current "racing" styles really CAN shift over a triple -- go for >> it; >> c. Many current "racing" styles really can be easily modified to do so >> (like filing down stops); >> d. Stay old school and order vintage parts. >> >> I've searched a dozen or more conversations here and have not found any >> clear answers. I'm sure many of you can steer me right (and that any >> decisions based on your inputs are on my own head and everyone else is >> blameless for their guidance). >> >> Thanks all for your wisdom, >> GAJett >> >> -- >> 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 visit >> https://groups.google.com/d/msgid/rbw-owners-bunch/5c5f7595-13e5-4668-8053-d7756a6b37dcn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rbw-owners-bunch/5c5f7595-13e5-4668-8053-d7756a6b37dcn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > > Patrick Moore > Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum > > ------------------------------------------------------------------------------------------------------- > > Executive resumes, LinkedIn profiles, bios, letters, and other writing > services > > > ------------------------------------------------------------------------------------------------------- > > *When thou didst not, savage, k**now thine own meaning,* > > *But wouldst gabble like a** thing most brutish,* > > *I endowed thy purposes w**ith words that made them known.* > -- 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 visit https://groups.google.com/d/msgid/rbw-owners-bunch/e21e38e3-a609-400e-9b08-26003774cd1fn%40googlegroups.com.
