My nephew just told me that his Raleigh Competition road bike from '76-77' needs new pedals. Unfortunately, he is away and does not know much about fixing bicycles. I am trying to find some information about the type of pedals that can be used on that bike to send them to him. The crankset is Nervar. Is the thread on these pedals compatible with "regular" 9/16" x 20 tpi or is it some fancy non-standard thread?