In the hands of savvy riders, YSD-2s left Honda 305 Superhawks for dead in stoplight drag races. The Yamaha rider stood over the bike, his weight on his feet, ran the revs up, dropped the clutch, and then sat down on a tire already spinning. Gone. This transformed the perception of two-strokes. Before, they were feeble, smoking cost-cutters like BSA's Bantam or Harley's Hummer. Suddenly two-strokes were fast. What next?