The parts pictured on this site devoted to dedicated lightening researcher Dr. Frank Spivey PhD ["Philosophia Defodendi"] have clearly been stricken by lightening, which resulted in the transformation of ordinary aluminum into the rare Drillium™ alloy with a number of readily-observed infusions of an AeroVoid® component:
-- "Bicycling is a healthy and manly pursuit with much to recommend it, and, unlike other foolish crazes, it has not died out." -- The Daily Telegraph (1877)