The thing about 3 speed hubs is that they're really designed for relatively low torque applications, namely commuting in mostly flat cities. I wonder about their longevity when they're exposed them to the kind of torques involved with climbing a steep trail offroad. Jobst Brandt, king of torque, didn't like older SA 3spds because they could pop out of gear under load, potentially causing injury to the rider standing on the pedals:
http://yarchive.net/bike/sturmey_archer_hubs.html I think the newer hubs with redesigned pawl system are less prone to do that, but they're still not designed for high peak load applications. And while they are probably better sealed than the old ones, I don't think they are super well sealed compared to, say, a cartridge bearing freehub. One other thing to consider is that, especially with a brand new IGH, there is noticeable friction in the other-than-direct gears. In the low gear especially, this is apparent as vibration in the pedals. I know that with your brain injury, Patrick, you can be sensitive to sounds and smells, do you think this type of vibration might be problematic? All of this is theoretical coming from me, since I haven't tried it. I think there was an IGH forum on MTBR, which may have people who have actually tried it. It's been many years since I lurked over there though. On Monday, November 6, 2017 at 4:16:58 AM UTC-8, Deacon Patrick wrote: > > Patrick of the Moore asked with cocked eyebrow on a tilted head, me > squintin’ back at ‘im, puffin’ me pipe: “I'm curious as to your motive.” > Grin. > > Hearty simplicity with just enough practicality added to make it work. > Grin. My general approach to things is to try (for a minimum of three > months) the simplest way to do something. Doing so ALWAYS teaches me a LOT > and often the lessons are often utterly counter to anything I thought I > knew. I’ve spoken about doing this with going barefoot (where I > “discovered” the idea), and then floor living. A more recent iteration of > it is with writing. My first drafts are now all cursive on 5” x 7” > notebooks, in pencil, holding it completely differently from what is taught > (but as is shown in paintings almost universally from 300ish to 1,800s) and > sharpened to a 1.1mm lead. Without going into the mind numbing details, > this promotes flow of thought (and gets me past my brain injury challenges > of focus and losing train of thought), whereas typing and print are very > staccato. > > Since I’ve had the Quickbeam and shifted the Hunqapillar to a 1x9 38t x > 12-36t with manual bailout chainring of 24t (no front DR), I have often had > the thought “I only need rather wide spaced gearing, 3-5 gears, with a > really low gearing option for bikepacking. The QB is my “as simple as it > can be done” bike and it continues to teach me a LOT. Grin. I’m now > striving to apply that to the Hunqapillar. > > From what I’ve read the new Taiwanese Sturmey Archers are vast > improvements over the post 1950’s British made mediocre ones. They are > sealed (at least more so) than what you rode. > > Why IGH? Weatherproofing. Why 3? Heartiest, beefiest around. Greatest gear > range per gear, giving a 2 x 3 drive the same or slightly greater range as > my current 2x cassette. > > With abandon, > Patrick -- 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 post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
