YAMAHA'S PLAN TO ENTER AMERICA'S MOST ACCESSIBLE MOTORSPORT STARTS WITH A FLAT-PLANE PROTOTYPE THERE ARE ALMOST 700 active dirt tracks in the United States. Three of them are less than an hour from where we're standing, a few miles outside of Lincoln, Nebraska, in the dust and grit of Eagle Raceway's gravel paddock. The one-third-mile oval sits in a natural bowl, surrounded by wide green fields save one corner near the gate, where the granite rows of a cemetery stand. They are either ominous or convenient neighbors, depending on the day. They give me plenty to think about.
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