This 50-Year-Old Suzuki Outhandles Modern Dirt Bikes

Why did the 1977 Suzuki RM125B feel so deadly on a rough motocross track? This video dives into how Suzuki transformed the RM125 from a high-strung screamer into one of the most effective and respected 125cc two-strokes of the 1970s. With improved power delivery, smoother throttle response, sharper handling, and better momentum through rough sections, the 1977 RM125B became a weapon for real motocross conditions—not just perfect tracks. From the aggressive nature of the 1976 RM125 to the more refined and controllable 1977 “B” model, this is the true evolution of a machine that redefined what riders expected from a lightweight motocross bike. Whether you're into vintage MX, classic motocross bikes, or the history of Suzuki’s racing dominance, this story captures why many still consider it one of the best 125s ever built.