Tullio Campagnolo

Born in Vicenza, Italy, Tullio Campagnolo started as a competitive cyclist, which is a fairly straightforward career path for someone who would later invent things to make cycling better. His direct experience with the frustrations of early bicycle technology led him to innovate, because apparently, a cold, numb hand fumbling with a wingnut is excellent motivation for engineering.

His moment of clarity, purportedly frozen in time on the Croce D'Aune pass in 1927, led to the creation of the quick-release skewer. This ingenious device allowed cyclists to change wheels without disassembling half the bike, a move that shaved precious seconds off race times and probably saved countless wingnuts from being launched into roadside ditches. From there, the Campagnolo brand grew, becoming synonymous with high-end, precision-engineered cycling components.

Campagnolo components quickly became the standard for professional racing, gracing the bikes of champions in the Tour de France and Giro d'Italia. While not exactly curing cancer, making bikes go faster and shift smoother has undoubtedly brought joy (and some very expensive repair bills) to millions. His legacy endures, proving that sometimes, the best way to change the world is one gear shift at a time.

As for his Jewish bona fides, there's absolutely no indication. Italian, yes. Innovative, absolutely. Jewish? Not even a little bit, unless you count the devotion some cyclists have to his brand as a form of religious observance. Which, come to think of it, might be pushing it.