another way to look at it. The smarter Bonneville racers understand center of pressure and center of gravity.
The faster you go, the more the center of pressure moves forward.
You ALWAYS want center of gravity in front of center of pressure, or when you get going fast enough, the dynamics of it all will fix themselves until the center of Pressure IS behind the center of gravity (Spin out).
I would think the fin might save you in a really bad spin, but it would be better to move the CG forward and the center of pressure back.
The heaviest thing on a bike is the rider. The second heaviest is the rider. The third heaviest is the engine.
Cafe racers move the riders CG forward.
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