How did they discover this? While riding they had an uncertain moment or made a false/mistimed control input. What we tend to notice are symptoms rather than root causes of these missteps and uncertainties. Once an error is unfolding, it is the exceptional rider who can identify exactly what went wrong two steps before. The current error—“I’m running wide,” for example—typically captures all of his attention and he mentally sticks right there. He’ll more than likely think he was going too fast, which is almost never the real reason.