1 jan 1930 ano - Dassler realized that distance
spikes should be different from
sprinter spikes. Sprinters run on
their toes and don’t use their
entire foot. So plastic bottom
plates were added to the toe
area ,and heel protection was
removed from sprinter spikes
to cut out more weight. Also,
different shapes of spikes were
put into the bottom of the shoe
depending on the event.