Seen some drawings and its a simple exhaust valve cooling system. The external dimensions and look of the engine won't change. There's just a water jacket around the exhaust valve on each head. There'll be two separate tiny radiators and on the tourers they'll be easily hidden in leg sheilds.
It's like the system used on the XR1200 but with water instead of oil.
Of course the article was dated April 1 so it may be a prank.
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