On Fri, May 9, 2014 at 10:35 AM, Ken Norton <ken@xxxxxxxxxxx> wrote:
> > Plus, it appears to be friction drive, which means if the rim gets dirty
> or
> > wet, and/or the drive wheel gets dirty/wet, how are you going to transfer
> > drive energy to the wheel?
>
> Yeah, I'd prefer to have some gearing involved somehow. Friction drive
> would be a great way to get your teeth knocked out if it slips while
> under heavy peddling. But it usually works for the railroads....
>
> --
>
> The railroads rely on metal-on-metal contact being driven by tons and tons
of weight. The railroads also keep a bunker full of sand to dribble on the
rails if that contact starts to fail...
--
Paul Braun
Certified Music Junkie
"Music washes from the soul the dust of everyday life." -- Berthold Auerbach
--
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