Imagine riding a bicycle without a chain — yet it pedals just as smoothly as any modern bike. This isn’t science fiction; it’s a reality dating back to the late 1800s and early 1900s, when engineers invented the shaft-driven bicycle. Unlike conventional bicycles, which rely on exposed chains to transfer power from the pedals to the rear wheel, the shafted bicycle used a … [Read more...] about The Bicycle Without a Chain: A Vintage Engineering Marvel

