The circle distance changes  depending upon what size chain ring you are
using as well. The same ratio gear  but using a smaller chain wheel
effectively makes the crank longer because the smaller chain wheel brings
the chain closer to the fulcrum (Spindle)

On Fri, Aug 27, 2010 at 11:27 AM, Brad <buttermyba...@gmail.com> wrote:

> Darn you and your "geometry"!
>
> And, um, good point.
>
>
> On Aug 26, 5:43 pm, William <tapebu...@gmail.com> wrote:
> > Even if you wore elevator shoes that were 4 inches thick, you still
> > would pedal bigger circles with longer crankarms.  The radius of that
> > circle is the crank arm length, and has nothing to do with shoe
> > thickness or pedal thickness, provided your foot is actually on top of
> > the pedal at all times.  Draw it on a piece of paper and you'll see
> > it.  Shoe thickness will change where you might need to position your
> > saddle, but it won't make your crank arms feel longer (or shorter).
> >
> > On Aug 26, 2:25 pm, Brad <buttermyba...@gmail.com> wrote:
> >
> >
> >
> > > On Aug 22, 1:30 am, charlie <charles_v...@hotmail.com> wrote:
> >
> > > > Just wear some 2.5 mm thicker shoes !
> >
> > > Yeah, it seems like between pedal, cleat, shoe, and sock variation you
> > > could easily have a 2.5mm variation in thickness.
>
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-- 
Fai Mao
The Blogger who sometimes responds to comments

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