Just saw this immediately after my second post demanding clarification. This supplies the clarification; thanks.
Interesting: my own suspicion had been that vibration and drag depended on factors other than the type of hub and your wider experience bears this out. Back to hubs: I notice that the SON 20 R spins quite freely in the stand despite the short radius and the very light circumferential weight -- and thus, overall, low inertia -- of a 559 bsd wheel shod with very light 23 mm tire. (I now use Kojaks, but I used to run old stock Specialized Turbos.) OTOH, the SP xx 8 vibrates considerably (in the stand) and drags to a stop rather quickly with the Open Pro/Parigi Roubaix wheel. But I don't notice this on the road. The SON 20 R exhibits a buzz at certain cruising road speeds that I didn't find with any of my 3 Shimanos, but it's merely aesthetic and not noticeable in effect on effort. On Wed, Oct 8, 2014 at 7:54 PM, William deRosset <wmderos...@gmail.com> wrote: > Dear Patrick, > > My experience has been that vibration tends to vary considerably with the > hub generator, even with the same owner, light, and bike. > > I owned one first-generation SON 28, and it only had the subtlest vibes at > around 15mph when running a Lumotec front light. I got it in 1999, and it > is still in service (on its second set of bearings). > > I've had three second-generation SON 28's. One was vibration free. One was > buzzy at ordinary 18mph or so JRA speeds with the lights off, and more so > with the lights on. The other was buzzy only with the lights on at 20mph or > so. The first two came and went. The last is still in-house. > > My experience with SON 20R and Edelux hubs (I've got a pile in the fleet) > also vary from hub to hub, but none have been objectionable to date. > > I've only owned one SP SV-8, and I can't comment on the variability > between hubs there, but my example is slightly higher-drag and buzzier with > lights-on than the average Edelux at ordinary riding speeds, but it is > within the range of variability of the SON hubs on my current machines. > > Best, > > Will > William M. deRosset > Fort Collins, CO > > On Tuesday, October 7, 2014 4:14:28 PM UTC-6, Patrick Moore wrote: >> >> Just a general note: Vibration seems to vary considerably with owner and >> light and bike. My own experience has the SP vibrating much more (light on) >> than either SON 20R or DN 3H72 (3 of those). In fact, I think my SON >> vibrates more than any of the Shimanos did, on. No vibration from any when >> "off", and in no case has it been a real problem, even with the SP. 1st ed >> Cyo headlights for all except 1st ed Edeluxe for SON. >> >> On Tue, Oct 7, 2014 at 3:11 PM, 'Rick' via RBW Owners Bunch <rbw-owne...@ >> googlegroups.com> wrote: >>> >>> >>> Experimented briefly w/ the Shimano dynohub on a Bleriot, I did have >>> considerable vibration. >>> >> -- >> Resumes, LinkedIn profiles, bios, and letters that get interviews. >> By-the-hour resume and LinkedIn coaching. >> Other professional writing services. >> http://www.resumespecialties.com/ >> www.linkedin.com/in/patrickmooreresumespec/ >> Patrick Moore >> Alburquerque, Nouvelle Mexique, Vereinigte Staaten >> >> ************************************* >> * "Where you come from is gone, where you thought you were going to >> never was there, and where you are is no good unless you can get away from >> it. Where is there a place for you to be? No place.* >> * "Nothing outside you can give you any place," he said. "You needn't to >> look at the sky because it's not going to open up and show no place behind >> it. You needn't to search for any hole in the ground to look through into >> somewhere else. You can't go neither forwards nor backwards into your >> daddy's time nor your children's if you have them. In yourself right now is >> all the place you've got. If there was any Fall, look there, if there was >> any Redemption, look there, and if you expect any Judgment, look there, >> because they all three will have to be in your time and your body and where >> in your time and your body can they be?* >> * "Where in your time and your body has Jesus redeemed you?" he cried. >> "Show me where because I don't see the place. If there was a place where >> Jesus had redeemed you that would be the place for you to be, but which of >> you can find it?” -- *Flannery O'Connor,* Wise Blood * >> > -- > 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 http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- Resumes, LinkedIn profiles, bios, and letters that get interviews. By-the-hour resume and LinkedIn coaching. Other professional writing services. http://www.resumespecialties.com/ www.linkedin.com/in/patrickmooreresumespec/ Patrick Moore Alburquerque, Nouvelle Mexique, Vereinigte Staaten ************************************* * "Where you come from is gone, where you thought you were going to never was there, and where you are is no good unless you can get away from it. Where is there a place for you to be? No place.* * "Nothing outside you can give you any place," he said. "You needn't to look at the sky because it's not going to open up and show no place behind it. You needn't to search for any hole in the ground to look through into somewhere else. You can't go neither forwards nor backwards into your daddy's time nor your children's if you have them. In yourself right now is all the place you've got. If there was any Fall, look there, if there was any Redemption, look there, and if you expect any Judgment, look there, because they all three will have to be in your time and your body and where in your time and your body can they be?* * "Where in your time and your body has Jesus redeemed you?" he cried. "Show me where because I don't see the place. If there was a place where Jesus had redeemed you that would be the place for you to be, but which of you can find it?” -- *Flannery O'Connor,* Wise Blood * -- 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 http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
