Patrick Moore said: "My own ideal dirt road cogsets are very similar, only starting with a 13 and swapping the 21 for a 22 and adding a 25 or 26 at the back."
What chainrings do you use with this ideal 10-speed 13-25/6? Bill Lindsay El Cerrito, CA On Monday, June 15, 2020 at 10:27:02 AM UTC-7, Patrick Moore wrote: > > 10-speed straight block! It's beautiful. My own ideal dirt road cogsets > are very similar, only starting with a 13 and swapping the 21 for a 22 and > adding a 25 or 26 at the back. > > The only closer-ratio cogset is the secret "Polish Team17 X 17" cogset, > with apologies to Poles everywhere. > > My own experience, not extensive, with index-shifting home-made cogsets is > that they work pretty well post-7-speed. You might have to very slightly > overshift on certain cogs, but not to the point where it's annoying -- > certainly no worse than OEM Shimano XT stock 7-speed indexing. > > [image: image.png] > > On Mon, Jun 15, 2020 at 11:12 AM Bill Lindsay <tape...@gmail.com > <javascript:>> wrote: > >> [image: IMG_0777.jpg] >> Here's my first proof-of-existence of a cassette that does not exist as >> an off the shelf product: It's a 100% Shimano HG500, 10 speed, 12-21 >> straight block. >> >> On my Rivendell Roadeo, with a 46/30 crankset, that will give me the >> following gears: >> >> 46 30 >> 12 103.5 67.5 >> 13 95.6 62.3 >> 14 88.7 57.9 >> 15 82.8 54 >> 16 77.6 50.6 >> 17 73.1 47.7 >> 18 69 45 >> 19 65.4 42.6 >> 20 62.1 40.5 >> 21 59.2 38.6 >> The way I have the chainline biased for minimum Q-factor, that >> effectively gives me a 1x10 in the big ring that will cover 60 - 100 gear >> inches. I'll avoid the smallest three cogs with the 30T chainring. The >> largest 7 cogs spread evenly over the 40 - 55 inch range. >> >> I haven't confirmed how well this indexes in the stand, but I'll check >> that out shortly. The on-the-road question I will ask myself will be >> whether I find the steps between gears annoyingly TOO SMALL. >> >> It definitely looks cool >> >> Bill Lindsay >> El Cerrito, CA >> >> >> >> On Thursday, June 11, 2020 at 5:42:48 PM UTC-7, Bill Lindsay wrote: >>> >>> I bought six Shimano HG500 10 speed cassettes. Three of the 12-28 size >>> and three of the 11-32 size. >>> >>> I ground off the heads of the rivets holding the cogs together, and >>> pulled the cogs apart, and now I have the sweet beginnings of a fully >>> stocked cog board. The two cassettes yield: >>> >>> 11T lockring >>> 12T lockring >>> 11T first position >>> 12T first position >>> 12T second position >>> 13T second position >>> 2x 14T flat >>> 15T flat >>> 16T flat >>> 17T flat >>> 18T flat >>> 19T flat >>> 20T flat >>> 21T flat >>> 22T flat >>> 23T flat >>> 2x 25T flat >>> 28T flat >>> 28T beveled >>> 32T beveled >>> >>> Lots of 10 speed spacers >>> >>> The 11-32 cogs have some weird discoloration, like maybe they get washed >>> after assembly and the moisture got trapped. Whatever. >>> >>> If anybody wants to buy a very hard to find 20T or 22T Shimano 10 speed >>> cog, I would sell one of each, two cogs for $25 shipped. I'll even throw >>> in two spacers. >>> >>> Bill Lindsay >>> El Cerrito, CA >>> >>> [image: unnamed.jpg] >>> >>> -- >> 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-owne...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/rbw-owners-bunch/f7688207-3e46-4694-9732-11f4a4e47816o%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rbw-owners-bunch/f7688207-3e46-4694-9732-11f4a4e47816o%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/716d6b2a-d441-4572-8e9a-b18bdb597502o%40googlegroups.com.
