If you include the Gran Sport model among the "silver-cage" pedals, the GS axles did not have the spiral "rifling" of the Record and Super Record pedal axles.
Lee Berg Palo Alto, Calif.
"Jon M. Schaer" wrote:
>
> Is there any mechanical or design difference between the silver-cage and the
> black-cage models?
>
> Thanks,
>
> Jon Schaer
> Columbus, OH