The Harley-Davidson Sportster S was hyped as a revolution with modern tech and bold design, but by 2025, it’s become a dealership deadweight—outpriced, outclassed, and overshadowed by cheaper, better-handling alternatives. And it’s not alone: once-popular models like the Kawasaki Vulcan S and BMW R18 are now collecting dust, unable to compete with newer, tech-savvier rides. Let’s watch the video to see which other bikes have lost all their value...