Aha! Is this so? Thought experiment (brow furrowed). Yes, you are right -- it's like dragging the bottle's roller on the ground.
Great! Thanks. On Fri, Dec 7, 2012 at 6:21 PM, Andrew Letton <let...@flash.net> wrote: > Bottle dynamos don't care what size the wheel is. Tire linear velocity and > hence bottle dynamo RPM is equal to bike speed, regardless of rim diameter. > cheers, > Andrew > (Painstakingly pecked out on my iPhone; please pardon my brevity and tpyos.) > > On Dec 7, 2012, at 11:30, PATRICK MOORE <bertin...@gmail.com> wrote: > >> I am grudgingly getting closer and closer to refurbishing a cheap, >> "Parliament" folder -- the kind that was sold in the '80s under half a >> dozen names. Folder fixie, maybe. Anyway, the fork has a right-side >> bottle dynamo tab that must be used, but the wheels are 20". Any ideas >> about a cheap bottle that at 15 mph on 451 mm? 419mm? wheels won't >> cause huge drag? >> >> Cheap, low drag are the chief requirements. >> >> Thanks. >> >> It's like this one, but named "Parliament". I may replace the name >> with a "Rivendell" decal -- is that OK? >> >> >> -- >> >> ------------------------- >> Patrick Moore, Albuquerque, NM, USA >> For professional resumes, contact Patrick Moore, ACRW >> http://resumespecialties.com/index.html >> ------------------------- >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To post to this group, send email to rbw-owners-bunch@googlegroups.com. >> To unsubscribe from this group, send email to >> rbw-owners-bunch+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/rbw-owners-bunch?hl=en. >> >> <Bianchi-folding-bike.jpg> > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > To unsubscribe from this group, send email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rbw-owners-bunch?hl=en. > -- ------------------------- Patrick Moore, Albuquerque, NM, USA For professional resumes, contact Patrick Moore, ACRW http://resumespecialties.com/index.html ------------------------- -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
