Comments by "Uhtred" (@uhtred7860) on "360° vs 180° vs 270° Crankshaft Angles in Parallel Twin Engine | Explained" video.

  1. A crossplane crank was so named because viewed from the end the crank pin formed a plus sign, or cross. I don't know how a 270 degree twin can be a "crossplane", unless of course its just marketing BS. My old 96 Yamaha TRX 850 had the same 270 crank as the modern twins and no mention of "crossplane" was mentioned. Same goes for the CP-3 triple, it should be a "Starplane" crank, because it forms a star shape, like a Mercedes emblem, not a "cross".
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  2. There is a real reason why BMW, Honda, Yamaha, Aprilia, Triumph, Royal Enfield, KTM (ok the KTM is 285 degree crank, but its close so...) The reason all those manufactures choose the 270 degree crank is because it is the best for a parallel twin.
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  3. They don't make parallel twins any more.
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  4. A 180 degree crank i believe.
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