Z
Zog The Undeniable
Guest
Leo Lichtman wrote:
> Why are pedals threaded RH on the right side, and LH on the left side? If
> the idea is to keep the pedals from working loose as you ride, I think
> they've got it backwards. The torque applied to the pedal shafts by the
> bearing friction, in the existing system, tends to loosen them. But that
> friction is so low compared to the tightness of a properly installed pedal
> that I don't think you could unscrew a pedal by spinning it.
>
> What am I missing? They used to have left handed lug nuts on cars, and they
> don't do that anymore. Could bicycle technology be THAT far behind?
>
Sheldon's site has a good explanation. It isn't obvious why things are
this way until you try the "pencil test" (no, not that one).
> Why are pedals threaded RH on the right side, and LH on the left side? If
> the idea is to keep the pedals from working loose as you ride, I think
> they've got it backwards. The torque applied to the pedal shafts by the
> bearing friction, in the existing system, tends to loosen them. But that
> friction is so low compared to the tightness of a properly installed pedal
> that I don't think you could unscrew a pedal by spinning it.
>
> What am I missing? They used to have left handed lug nuts on cars, and they
> don't do that anymore. Could bicycle technology be THAT far behind?
>
Sheldon's site has a good explanation. It isn't obvious why things are
this way until you try the "pencil test" (no, not that one).
