F
Frank X
Guest
"W K" <[email protected]> wrote in message news:[email protected]...
>
>
> Nope. There will be a difference between adding one gram at the pedal end or one gram at the heel
> end. Some of the force to keep the heel going round in (near) circles will be from the cyclist.
>
Yep shoes aren't point masses and the center of mass of the shoe isn't at the end of the crank.
I 'd guess center of shoe mass is about 3cm off the end of the crank, I guess the work done is a bit
like shaking the shoe 6cm back and forth 60 times a minute (or 90 for roadies). More like the
vibration shaker in a playstation gamepad than a planet.
This corresponds well with the fact we all know it is much harder to ride in big heavy boots.
>
>
> Nope. There will be a difference between adding one gram at the pedal end or one gram at the heel
> end. Some of the force to keep the heel going round in (near) circles will be from the cyclist.
>
Yep shoes aren't point masses and the center of mass of the shoe isn't at the end of the crank.
I 'd guess center of shoe mass is about 3cm off the end of the crank, I guess the work done is a bit
like shaking the shoe 6cm back and forth 60 times a minute (or 90 for roadies). More like the
vibration shaker in a playstation gamepad than a planet.
This corresponds well with the fact we all know it is much harder to ride in big heavy boots.