This article: https://road.cc/content/tech-news/primoz-roglic-uses-gravel-gearing-decisive-giro-tt-301511 Says he used the "XPLR-1271" from SRAM, which only offers a 10-44 (10,11,13,15,17,19,21,24,28,32,38,44) cassette, with even chainrings between 38 through 46, most likely a 44. I don't know if there are better articles on what he ended up using but with a 44t ring, that's a 4.4:1 through 1:1 range.
On Wednesday, May 31, 2023 at 7:27:29 AM UTC-7 Patrick Moore wrote: > Garth: Do you by any chance know what cog combination or what a typical > cog combination would be for such a climb by a pro? I'll be he didn't use a > 52 t inner cog and that he had a pretty close spread in the center of the > cassette, but would be happy to be proved right or wrong by evidence. > > As to 1Xs for pro racing: with 11 or 12 cogs, do pros need to shift > between rings at all, even using 2Xs, except at major terrain transitions? > > I got my collection of 10 sp Miche cogs at Cycle Clinic in the UK. > > On Tue, May 30, 2023 at 7:23 PM Garth <gart...@gmail.com> wrote: > >> I was watching the uphill penultimate TT road racing stage of the Giro D' >> Italia this weekend where the eventual winner Primoz Roglic chose to run a >> 1x for his TT bike. The announcers were "praising" him for the >> "innovative" choice of using a mtb gearing setup for the TT. Well lo and >> behold, at a low speed(which is fast for mere mortals, hah hah) he was >> about 2/3 up the course and he ran over what appeared to be a small break >> in the road crosswise and his chain derailed off the ring. He put it back >> on cool as a cucumber and still trounced everyone, but so much for 1x's not >> failing like any other system, because they do. >> >> I also ran across a video of a "pro" mechanic touting stuff he likes. I >> was with him on some things, then he mention that cables were so passe', >> and that the way to go is electronic shifting and 1x. A lifetime of buying >> failing batteries, waning replacements, software updates and subscription >> fees .... yummm ... doesn't that sound appealing ? >> >> In regards to cassette cogs, the Miche 8-11sp are available from European >> websites, let your fingers do the walkin'. Also, Sunrace 7-9 speed lower >> end cassettes(no spiders) are all held together with removable pins. Find a >> backside photo of the potential cassette and you can confirm it. >> >> -- >> 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-bun...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/rbw-owners-bunch/94e4b0af-bdfb-4307-999c-c5ad38971f9dn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rbw-owners-bunch/94e4b0af-bdfb-4307-999c-c5ad38971f9dn%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/b9af1a2e-f105-41b5-8ee4-945280ab0583n%40googlegroups.com.
