Comments by "David Elliott" (@davidelliott5843) on "PARALLEL TWIN: 360° vs 180° vs 270° - Ultra in-depth but EASY TO UNDERSTAND - ENGINE BALANCE" video.

  1. The German experimental engine maker "Neander" was a parallel twin with two counter-rotating cranks and two rods per piston. These totally cancelled primary vibration at the most of more complexity. However, they harnessed piston power more efficiently. It was heavier but not as badly as you'd expect.
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