I perfectly understand what you're saying here, Keith. Yep! I sure do. I perfectly understand that most, if not all, motorcycle engines will in the future have to be water-cooled in order to meet federal, state, AND international emission standards.
Yes I do, and I've known this fact for some time now.
BUT, do me a favor here. Look at this pic of one of the engines of the first generation Hinckley T-Bird Triples here if you will and tell me....

...WHY is it that the Triumph engineers and designers placed those [basically] non-functional cooling fins under the cylinder heads and around the cylinder barrels on this WATER-COOLED creation of theirs, and YET went with the more slab-sided, and yes, BLAND look on their next generation Thunderbird RETRO-styled motorcycle engine?
You HAVE to know the reason those designers added those fins on the original Hinckley T-Birds was for AESTHETIC reasons only, don't cha??? And I'm guessin' the boys in Hinckley at the time KNEW that was because a SLAB-SIDED look on any engine that sticks out for all the world to see, and is not hidden behind plastic or under an automobile's hood(as Jack above mentioned), just natually adds more "visual interest" with...and here it comes.......COOLING FINS!!!
(and if anybody out there is wondering why in the world this seemingly "minor point of interest" seems to be an obsession of mine here...it's because....I LIKE EVERYTHING ELSE ABOUT THE NEW T-BIRD...the size, the potential power, AND of course that it's a Triumph Parallel Twin...BUT THAT ENGINE IS JUST NOT THAT PRETTY TO LOOK AT, and I just don't see me sittin' in my garage with a beer in my hand and lookin' over at IT and admiring its engine's beauty while its just sittin' there like I can presently with my BONNIE AMERICA'S MOTOR!...and I wanted the new T-Bird to be JUST AS GORGEOUS so I could do the SAME FRIGGIN' THING OCCASSIONALLY....that's why, folks!!!)