I'm amazed at what arcana comes up from a request for obscure information.
I cannot be 100% certain without disassembling the hub in question, but
various inputs from several lists indicate that this "AR-8" hub is not an
ultra-close ratio racing 3 speed hub from 1938 ("AR-8") inexplicably
attached to a drum brake but a A*B*-8, an AW (133/100/75) wide ratio hub
very expectedly attached to a drum brake made in 1938 for very reasonable
use on an upright roadsters. Someone thought that the stamping read
"AB-*3"* but
I see an 8 when I look closely.I Googled some more and found a couple of old FS ads for old roadsters with AB-8 hubs as well as these SA links for the AB and the AB3, which both are also on Sheldon's SA IGH crib chart: AB: 1930s wide ratio with drum brake: http://www.sturmey-archerheritage.com/index.php?page=history-detail&id=54 *And* the AB3: a modern (at least per Sheldon in 2010) iteration: https://web.archive.org/web/20121029092003/http://www.sturmey-archer.com/products/hubs/cid/3/id/18/specs/1 But I think that the stamping reads "8" and not "3" -- again, AB hub, wide ratio, plus drum brake, 1938. So, over and out. On Tue, Apr 16, 2024 at 3:03 PM Patrick Moore <bertin...@gmail.com> wrote: > Someone wants to trade for one of my AMs and I want to know what ratios it > has. > > I realize that this is a long shot (and yes, I first asked on the IGH > list) but does anyone know what the ratios are? > > >>> Is this in fact an ultra-close ratio AR hub* (made for time trialers) > mated for some reason to a drum brake? Perhaps for tandem time trialers? <<< > > I'd love to have an AR with or without drum, but I don't want to end up > with another AW-type epicyclic. > > > * Direct, 107.24% overdrive, 93.24% underdrive; say 75/70/66 gi. > > -- > > 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, k**now thine own meaning,* > > *But wouldst gabble like a** thing most brutish,* > > *I endowed thy purposes w**ith words that made them known.* > -- 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, k**now thine own meaning,* *But wouldst gabble like a** thing most brutish,* *I endowed thy purposes w**ith 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-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgtH0iLVZkH0duMq9vz8nCBppAws2GdYo2GcP_B15%2Bgs2g%40mail.gmail.com.
