2003-03-05

It really seems like bicycles are a hodge-podge mixture of SI and FFU.  I
wonder what it would take to make it one or the other, hopefully, all SI.

John


----- Original Message -----
From: "Kim, Richard" <[EMAIL PROTECTED]>
To: "U.S. Metric Association" <[EMAIL PROTECTED]>
Sent: Wednesday, 2003-03-05 16:14
Subject: [USMA:25037] RE: Gear Inches


> Michael, etal:
>
> There is a metric system called development (in meters). However, I have
> never heard it used, we've pretty much stuck with gear inches.
>
> See http://www.sheldonbrown.com/gain.html and
> http://www.sheldonbrown.com/gloss_d.html#development for more info on
> bicycle gearing systems.
>
> Rich Kim
>
>
> -----Original Message-----
> From: Michael Payne [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, March 05, 2003 9:54 AM
> To: U.S. Metric Association
> Subject: [USMA:25032] Gear Inches
>
>
> I recently received a copy of the Washington Consumer Checkbook
> (www.checkbook.ord), a Consumer Reports style magazine for the Greater
> Washington DC area. It's published by the Center for the Study of
Services.
> On an article on bikes, it states the gear ratios of a bicycle are
> described in terms of gear-inches.  I've never heard of this before,
> fortunately most everything on bicycles is in metric, including all the
> wrenches, the mass of different parts are expressed in grams in most
> catalogs.
> I'd like to find out what the correct term here is so i can write to them.
> I'm sure its supposed to be a ratio of how many teeth per cog.
>
> Thanks
>
>
> --- Michael Payne
> --- [EMAIL PROTECTED]
> --- EarthLink: The #1 provider of the Real Internet.
>

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