Howdy folks, I need the chainring bolt (outward-facing) for a Stronglight 57 crank. This is a hexagonal-sort of bolt, requiring a little wrench, as opposed to the allen-type bolt that was introduced with the Stronglight 63. I don't need the rear-portion, which is a recessed-nut sort-of-thing. If necessary, I'll buy a whole set of 5, but I only needs one ... I already tried Harris Cyclery, which is local to me, but Sheldon didn't have it ! Thanks VERY much to anyone who can help me. cheers, mario