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 -- 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/CALuTfgvcC-B%2BkPv9EbE0LBwwArXEgKWE3KDNNAhPu7M9PXQNaw%40mail.gmail.com.
