Peter: Thanks for posting this; good to know that TA is still making 50.4 bcd rings. I have a minor stash of old Pro 5 Vis arms and, while I'd eagerly trade one for a RH crank with rings of my liking, I do find them almost perfect for my wants (well, would happily replace the hardware with some from VO).
On Fri, Jun 4, 2021 at 9:34 PM Peter Adler <divisi....@gmail.com> wrote: > Large selection of chainring sizes? *C'est très humoristique!* > > Specialites TA (still in business; still producing 50.4mm cyclotouriste > chainrings in France, now in 7075 aluminum) make outers (attaches to > crankarm) in all even increments from 40-52T, and inners (attaches to > outers) from 26-42T. > > If you wade into the used market, outers up to 56T are common; outers up > to 64 are findable. Plus, odd increments are out there; I have > 45T/47T/49T/51T outers, and I'm about to put a 29T granny on a triple. They > are of a softer alloy though, if that's important. > > The biggest advantage of 50.4 five-pin TA chainrings is that they'll fit > on almost any cottered or cotterless five-pin crankset made in the last 80 > years (TA, Stronglight, Nervar, Sugino, SunXCD, Magistroni to name but a > few), except the ever-quixotic 50mm Zeus Competition. RH chainrings fit on > RH cranks, and nothing else. > > Peter Adler > who really isn't looking for competition in the 50.4 search, but honest > disclosure demands in > Berkeley, CA/USA > > On Friday, June 4, 2021 at 4:19:22 PM UTC-7 cycli...@gmail.com wrote: > >> I went with the Rene Herse cranks when I built up my Sam due to the large >> selection of chainring sized (I went with 44/28). The Sun XCD cranks >> weren't around at the time, though I do run a XCD rear derailleur. The >> 7075 chainrings (VO and RH) may be a harder alloy than the 6066 on the XCD. > > -- > 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/356086e9-1c02-4225-ab0f-e3ee45737646n%40googlegroups.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/356086e9-1c02-4225-ab0f-e3ee45737646n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- ----------------------------------------------------------------------- Patrick Moore Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum -- 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/CALuTfgs0bBo3UpxQJ%2BM0jfCvY5JQ%2BkmgODN1ENirXu210jj33w%40mail.gmail.com.
