BTW, I will add that chain tugs are not at all necessary for secure axle placement in long horizontal dropouts or track ends; hex nuts are very secure, and I've found that even wingnuts, hand tightened, keep axles in place under my preferred high-torque/low rpm pedaling with just sufficient effort given to finger tightening.
On Tue, Jun 20, 2023 at 12:22 PM Patrick Moore <bertin...@gmail.com> wrote: > SA still makes 3-speed hubs with OL spacing to fit a 120 mm OL frame; at > least the chart shows a model for 116 mm OL spacing which with the proper > anti-rotation washers between locknuts and inside face of dropouts would > fit the QB perfectly. > > > https://www.sturmey-archer.com/files/catalog/files/319/SPECIFICATIONS%20-%20IGH%20TS%20&%20QS.pdf > > My IGH hubs are variously spaced for variously spaced frames, 114 MM TO > 130 MM, but with a bit of washer fettling I get a 114 mm OL TF with 145 mm > axle meant for thin plate dropouts into a 120 mm OL Riv custom road fixed > frame with fat modern forged dropouts with ample room for hex bolts. I > can't use the uber-cool SA proprietary wingnuts, but the axle fits securely > and worry-free. > > I started to adapt my S3X with 130 mm OL spacing and correspondingly long > axle to 120 mm but stopped mid-project; but it's not hard to remove the > spacers which make up most of the difference between 114 and 130 mm, and > cut the axle as -- and if -- needed. Pull-chain shifting technology is > very, very forgiving and adaptable. > > And, as another aside, for me, 3 speeds is perfect for IGHs; more than > that and I want a derailleur. > > > > On Tue, Jun 20, 2023 at 10:50 AM Arthur Mayfield <ajmayfi...@gmail.com> > wrote: > >> I don’t know what the rear spacing is on the Quickbeams and Simple One, >> but my Frank Jones Sr has 120mm track dropouts. Finding a modern >> manufacture IGH with 120mm OLD has been a lost cause for me (and I build my >> own wheels). I’m sure if I pored over the possibles long and diligently >> enough, I’d run across one or a vintage AW, but it simply becomes easier to >> hop on another bike when I need the gears. I’d like to build a 3 spd wheel >> for my FJ, though. >> >> One clear advantage of IGH over other multi-gear options on single speed >> bikes that I haven’t seen mentioned is the ease of riding with “good” >> fenders. I’ve tried using a flip-flop on my FJ with full coverage, aluminum >> fenders, and it’s not only a pita to do on the road (as well as >> time-consuming), but the rear fender could never be set up to fit properly >> to my standards. An IGH would make that a non-issue, at least until there’s >> a flat. Removing wheels from bikes rigged with chain tensioners on track >> dropouts “in the wild” for flats or other maintenance presents yet another >> nest of problems, with or without fenders. Overall, I’d be happier with a >> nice IGH. I could even get down to one bike 😝 >> >> On Monday, June 19, 2023 at 2:30:13 PM UTC-4 Patrick Moore wrote: >> >>> In defense of the old 3 speed igh, the drag, at least for the old SA AW, >>> has been tested at considerably less than that of much more complex, >>> multi-epicycle internal gear trains with 7+ gears, and my experience >>> (considerable with 2 and 3 speed SA hubs, only a little, but some with >>> modern 7+ gear hubs) bears this out very clearly. >>> >>> IMO, the simplicity and low drag (and lower weight) of the simpler >>> multigear hubs makes them preferable, at least to me, to the more complex, >>> draggier, and heavier ones. >>> >>> I have a QR 17/19 Dingle wheel on my Riv 1999 fixed gear road custom and >>> switching from the 76" to a 68" headwind gear is very easy, but I noticed >>> that I downshifted much more often and readily with the 2 speed TC hub (76" >>> direct and 66" underdrive), helpful when your direction into the wind or >>> the slope of the terrain changes often. My point is not that you ("all >>> y'all") should go get a TC -- last made in the 1940s? Mine is 1937 -- but >>> that igh's do offer some benefits over manual "get off the bike and move >>> the chain" shifting. >>> >>> Personally, I perfer the external simplicity of a simple igh over >>> multiple cogs or rings, and I prefer multiple cogs over multiple rings, >>> again for simplicity and ease of use. AAYMMAWV. >>> >>> I get back to that downgeared AW Schwinn: 69", 52", 39" which for a >>> $50-total-expenditure beater including new 36 t chainring + shop >>> labor (1989) proved to be very versatile indeed. >>> >>> >>> On Mon, Jun 19, 2023 at 10:32 AM Drew Saunders <drew.s...@gmail.com> >>> wrote: >>> >>>> My orange Quickbeam came set up as a "2 speed" with 32-40-chainguard >>>> chainrings on a 74/110 triple (still has those) plus an 18t freewheel. >>>> I immediately made it a "3 speed" with a 17/19 Dos Eno freewheel. The >>>> chain is too slack for the 32/17 to work, so only 3 options: 40/17 (99% of >>>> my riding), 40/19, 32/19. >>>> I later added a 22T freewheel to the flip side of the flip/flop hub, >>>> which will work with the 32, but not the 40, so I have an extremely >>>> inconvenient 4-speed. >>>> >>>> I rarely take it out of the 40/17, but the headwinds this morning made >>>> me wonder if I should have used the 40/19. >>>> >>>> All of that was much cheaper and easier than getting an internally >>>> geared hub, and if I did go for an IGH, I'd get a modern 7 or 8 speed >>>> anyway. >>>> >>> -- >> 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/822e3dbe-bdb5-4994-8c3f-70d38f1a2c78n%40googlegroups.com >> <https://groups.google.com/d/msgid/rbw-owners-bunch/822e3dbe-bdb5-4994-8c3f-70d38f1a2c78n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > > ----------------------------------------------------------------------- > Patrick Moore > Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum > > -- ----------------------------------------------------------------------- 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. 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