Hi Bob P.
This short chain was normaly attached to one or two pedals.
So it was possible to the driver to push on them like a bicycle to go forward.
That thing was an obligation for each without licence car in the 70's to be considered like a moped '' cyclomoteur'' and used without any paper and permit.
So, few solutions has been found by the builter, always very... special.
But anyway, these cars are very special, that is why we love them, isn't?
For remember : some of these cars will be at the french meeting at Laignes the 20 of august.
Regards.
Denis