Ah. Can you not remove the 5mm spacer? That should be enough room for a second cog, IMO. -W
On Tuesday, October 17, 2023 at 3:02:19 PM UTC-7 Patrick Moore wrote: > Not mine, said by seller to be a 2012 model. I have a 5 mm spacer, then > the 3/32" cog, and then the lockring threads. > > Good to know that the caliper (again, list, almost vertically atop the > rotor at top dead center, but actually offset a cm or two forward) can > accommodate a bit of fore/aft axle movement. > > On Tue, Oct 17, 2023 at 3:56 PM Wesley <brooks...@gmail.com> wrote: > >> Hey Patrick, >> My recollection of my monocog was that the freehub had room for three >> cogs. I think there were spacers on the hub that covered up most of the >> free hub - remove the locking and you can do adjust the spacers as >> necessary. If yours is the same, then you could just keep that wheel and >> put the additional cogs onto it. >> >> And, in case I wasn't clear in my earlier response, I think there is >> plenty of adjustment room in the disc brakes to accommodate the rear axle >> being adjusted in the dropout. >> -Wes >> >> On Tuesday, October 17, 2023 at 10:44:19 AM UTC-7 Patrick Moore wrote: >> >>> That's interesting, and after blundering into a few search result pages >>> about money markets and currency conversion I got: >>> >>> http://www.monebikes.com/read-me/ >>> >>> But he says nothing about adjustable chainstays, >>> >>> Still, he does talk about weird possibilities like 3" tires and drop >>> bars, so I must investigate. >>> >>> Really, though, to conclude this question, it seems that I can either >>> have a very simple bike with disc brakes as long as it's a single speed, or >>> I can accommodate 2 cogs using some niche, complex technology. I think I'll >>> either settle for a fixed drivetrain (no rear brake, no problem) or get off >>> and walk. Rear rim brake not option since I want to use disc rims. >>> >>> On Tue, Oct 17, 2023 at 8:44 AM Coal Bee Rye Anne <lionsrug...@gmail.com> >>> wrote: >>> >>>> I have no personal experience with single speed disc nor Rocker/Slider >>>> or any of the existing dropout configurations being discussed other than >>>> keeping a mental catalogue and casual interest of such things as I >>>> discover >>>> them... but what about telescoping chainstays? >>>> >>>> I recall seeing a few interesting options including a build that Rick >>>> Hunter did with a bottom bracket positioned wingnut to adjust chain >>>> tension >>>> with a form of telescoping chainstay (I forget what that particular bike >>>> or >>>> design was referred to but I think it had a rigid fork, 26+ tires, disc >>>> brakes, upright riser Hunter bars, and a cow pattern custom frame bag... >>>> in >>>> case that helps ID it or dig something up for further review from the >>>> interwebs!) >>>> >>>> Another is the design currently used by Cjell Mone of Mone Bikes >>>> referred to as the Mone Changer. I couldn't find an actual page >>>> discussing >>>> or highlighting the chainstay design itself but believe he builds them >>>> into >>>> various frames as requested. Here's a snippet from the FAQ page on his >>>> site. >>>> >>>> How do I work them Monē Changer dropouts? >>>> >>>> - Remember, there are 5 (not 4, don't forget the caliper adaptor ones) >>>> bolts to loosen. To lengthen, sit on the saddle and hold the rear brake, >>>> give a couple gentle bounces...that should do it. To shorten, get your >>>> chain started on your single speed cog and chainring and pedal it around. >>>> straighten the tire in the chainstays and tighten 6 bolts. If you're >>>> running gears your penance is putting the bike in the stand, throwing a >>>> foot on the BB and pulling the rim to the front. >>>> >>>> >>>> Since you are going the custom route for this hypothetical bike I >>>> figured I'd add these possibilities to the mix : ) >>>> On Sunday, October 15, 2023 at 6:12:06 PM UTC-4 Patrick Moore wrote: >>>> >>>>> Thinking out loud; help me clarify my thoughts. >>>>> >>>>> I think of devising a Monocog replacement, with 622X76/29X3" wheels, >>>>> but instead of a mono cog, with a duo cog. This hypothetical bike would >>>>> have disc brakes. I don't want to use a chain tensioner, and I prefer to >>>>> take advantage of the greater gear ratio differences between cogs of >>>>> different sizes compared to rings with the same tooth differences, and of >>>>> the consequent smaller axle movement required to adjust chain slack, so >>>>> the >>>>> multiple cogs would be in the back and not on the crank. >>>>> >>>>> On my beloved 1999 Joe Starck Riv Road Custom fixie I use a 17/19 >>>>> Dingle on a Phil hub with a QR axle; it's very easy to stop, flip the QR >>>>> lever, move the chain, align the wheel, and tighten the QR. >>>>> >>>>> That's what I imagine for the Monocog replacement. >>>>> >>>>> 1. Disc brakes. But this bike would have disc brakes. I'd probably not >>>>> need more than a 2-t cog difference, but will your typical caliper/rotor >>>>> setup accept the 1/4" axle movement? (1/8" of axle movement is required >>>>> -- >>>>> so they say; I've never measured it and take it on faith -- to accomodate >>>>> a >>>>> 1 tooth sprocket difference.) >>>>> >>>>> 2. Two cogs. How to get 2 cogs onto a suitable "ss" hub with a >>>>> freewheel. The DIngle isn't made anymore and in any event wasn't made -- >>>>> am >>>>> I right? -- with 2-teeth gaps. The Monocog has a freehub designed to take >>>>> 1 >>>>> single Shimano-spline-type cog; there's no room for a second cog. >>>What >>>>> options does one have to get 2 cogs with a 2-tooth difference onto a hub >>>>> suitable for a QR axle? >>>>> >>>>> I realize that I could just use an old 7 speed Shimano freehub, and I >>>>> might end up doing that, but I'd prefer to have a hub that does not >>>>> require >>>>> a wide stack of spacers. >>>>> >>>>> 3. Axle type and dropouts/trackends/thru-axle holes. I know that long >>>>> forward-facing horizontal dropouts, a QR axle, and a hub with 2 cogs on 1 >>>>> side allows very easy manual shifting, as this sort of shifting goes. I >>>>> am >>>>> also pretty sure that a good builder can use 135 mm OL spacing and still >>>>> give me the stay clearance I need for true 3" tires, so I'm inclined to >>>>> stick with this very old-fashioned wheel attachment method. >>>>> >>>>> But if there are other wheel attachment methods that allow you to >>>>> easily move the chain from one cog to another, I'd be interested to learn >>>>> about them. Sliding dropouts? >>>>> >>>>> Are there any other things to consider ? >>>>> >>>>> Thanks, Patrick Moore, who had a nice ride to church and back today on >>>>> a pretty Fall day riding the Monocog with 72 mm tires and a single 65" >>>>> gear >>>>> despite the bosque trail sand and the rear tire knobs occasionally >>>>> "whisping" on the chainstays (I fixed seatstay clearance with a hammer). >>>>> The Silca Impero with Campy head and the Road-style BB7s pulled by >>>>> non-aero >>>>> DC levers are ironic but in fact work very well. When braking from the >>>>> hoods you simply pull from a bit lower down on the lever; and the >>>>> Impero's >>>>> fat barrel moves lots of air fast into low pressure tires; 13 psi this >>>>> morning and it could have been lower. >>>>> -- >>>>> >>>>> ----------------------------------------------------------------------------- >>>>> 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,* >>>>> >>>>> *Know thine own meaning, but wouldst gabble like* >>>>> >>>>> *A thing most brutish, I endowed thy purposes* >>>>> >>>>> *With 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 rbw-owners-bun...@googlegroups.com. >>>> >>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/rbw-owners-bunch/a991d3aa-5236-4990-a1a1-65528196c0b9n%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/rbw-owners-bunch/a991d3aa-5236-4990-a1a1-65528196c0b9n%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,* >>> >>> *Know thine own meaning, but wouldst gabble like* >>> >>> *A thing most brutish, I endowed thy purposes* >>> >>> *With 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 rbw-owners-bun...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/rbw-owners-bunch/fe30b462-2932-4edb-b589-9237af7776f9n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rbw-owners-bunch/fe30b462-2932-4edb-b589-9237af7776f9n%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,* > > *Know thine own meaning, but wouldst gabble like* > > *A thing most brutish, I endowed thy purposes* > > *With words that made them known.* > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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