'73 catalog, Grand Touring was straight-gauge 1020 [image: Capture.JPG] On Friday, January 12, 2024 at 11:13:15 AM UTC-6 John Hawrylak, Woodstown NJ wrote:
> P Moore asked: "what besides tubing stiffness might make a main triangle > stiff or stable?" > > Frame size: small frames are stiffer than large frames. > > John Hawrylak > Woodstown NJ > > On Friday, January 12, 2024 at 10:48:14 AM EST, Patrick Moore < > bert...@gmail.com> wrote: > > > And yet that very light 531 normal gauge 1973 Motobecane frame handled > heavy rear loads (all comparisons on Tubus Fly racks) better than much > stouter frames. Why should that have been? > > To turn that into another question: what besides tubing stiffness might > make a main triangle stiff or stable? > > It was rather remarkable: That presumably thinnish-wall, and certainly > lighter, normal gauge 531 Motobecane handled rear loads better (for *me* -- > this is all judged by seat-of-pants feel -- than that (for me) overbuilt > 2003 Curt frameset, and better than with the Ram. > > Fond memory: grunting 45 lb on the rear Fly in a 67" fixed gear on that > Motobecane up an *uber-*steep 4/10 mile hill at 4 mph by the bike > computer -- yep, 20 rpm. > > On Fri, Jan 12, 2024 at 6:13 AM Ron Mc <bulld...@gmail.com> wrote: > > Hi Patrick, on the rear load thing - that stability is in the main > triangle. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "RBW Owners Bunch" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/rbw-owners-bunch/e1zJO1Hhl-U/unsubscribe > . > To unsubscribe from this group and all its topics, send an email to > rbw-owners-bun...@googlegroups.com. > To view this discussion on the web visit > > https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgsJVMMdPHP-CiqvJBhbEQzTE0DOUpsAUOuv4oEa9RhTOQ%40mail.gmail.com > > <https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgsJVMMdPHP-CiqvJBhbEQzTE0DOUpsAUOuv4oEa9RhTOQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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/f074a7a6-6f64-4652-a9de-3018a9d294dcn%40googlegroups.com.
