I've used 10 speed chains with 10, 9, 8, and single 3/32" fixed cogs -- no problems.
Aside, related, fwiw: Bike Radar some time ago recommended (and I am sure they were quoting earlier suggestions) using a chain 1 generation later than your cassette; thus 9 sp chain for 8 sp cassette, and so on. The idea is that the smidgen (scientific term) of added clearance will allow the chain a bit of off-center while not rubbing the adjacent cog. Single instance in proof: I use an 11 sp chain on 10 cogs, shifted friction, and whether it is this divergence or something else, this is the best-shifting drivetrain I'ver ever used, except for the positively supernatural crispness of a stock Sante' 7-speed, dt-shifter drivetrain; and this friction one is as close as Bartali to Coppi in the final leg. On Sun, May 1, 2022 at 10:06 AM RichS <rshannon6...@gmail.com> wrote: > I'm the target market for these cassettes since my friction shifted bikes > use 7 and 8 speed cogs; for the time being though I have enough cassettes > and spare cogs. What piqued my curiosity was Grant runs these with 10 speed > chains - and 9s. Something I haven't attempted but maybe worth a go. Anyone > here done a comparison? > > Thanks very much. > > Best, > Rich in ATL > > On Sunday, May 1, 2022 at 9:17:20 AM UTC-4 John Hawrylak wrote: > >> I agree with Garth about the poor gear progressions on the 13-34 Jim. >> The Shimano HG-50-K 13-134 is >> 13-15-17-20-24-29-34 >> which IMHO is much better, it avoids the 15-18 problem and has 2-3-4-5-5 >> spacing above 15 vs the Jim's 3-3-3-4-6 spacing. I used the HG-50-K on >> my 88 Voyageur and gives very good spacing. IRD also sold the same copy >> of a HG-50-K for about $30 2 years ago. I do not see it in the IRD store >> now. Maybe they changed suppliers. >> >> The 13-42 is also poor do to the 13-16 jump leaving NO 2 step drop for >> the high gears. My 1975 Shimano 14-32 5 speed had a 14-17 jump and was >> always frustrating on level terrain finding a good high cog. The 13-15 >> solves that. >> >> In all, why does anyone want to go from 9 speed to 7 speed??? I can see >> them saying here is a supply of 7 speed for folks with 126 OLD rears, but >> if you have a 130 OLD rear just use the 9 speeds out there. They have >> better progression. >> >> I think RBW is pitching folks a lemon with these as saying convert from 9 >> to 7 speeds. >> >> John Hawrylak >> Woodstown NJ >> On Saturday, April 30, 2022 at 7:30:36 PM UTC-4 Garth wrote: >> >>> I had some bit of hope that these would use an consistent gear >>> progression of 15-17-20-24 on the 13-34, but no ..... S-Works does the >>> overly big 15-18 jump along with the 18-21-24 which is unnecessarily close. >>> I often wonder of anyone who designs these actually rides it. IRD does some >>> weird cog progression with some of their offerings as well. >>> On Saturday, April 30, 2022 at 5:00:50 PM UTC-4 hinton...@gmail.com >>> wrote: >>> >>>> In 2022, pretty cool to see 7-speed cassettes sell out in less than 12 >>>> hours. But, if you missed out, this is a PSA that Soma has them in stock >>>> still, though they don’t include the spacers like Riv did. >>>> >>>> 13-34: >>>> https://www.somafabshop.com/shop/product/590906-s-ride-cassette-7sp-13-34t-cs-m200-6765?category=735 >>>> >>>> 13-42: >>>> https://www.somafabshop.com/shop/product/590907-s-ride-cassette-7sp-13-42t-cs-e500-6766?category=735 >>>> >>> -- > 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/097ff872-5a6a-43ed-a9f0-1538928e979cn%40googlegroups.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/097ff872-5a6a-43ed-a9f0-1538928e979cn%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/CALuTfgt7KjSDZb2Rxs3M-bw9ouWgZhpxCgPiCiaRUesr244SJg%40mail.gmail.com.
