Sorry, seems like this is just becoming an exercise in tire propaganda.
My defintion of propaganda btw:
"The intentional selective use and/or distortion of facts with the primary purpose to sway. alter, or change another's opinion or position on a subject at hand and not to widen, inform or move a discussion at hand along."
A narrower tires smaller contact patch for the same carried load usually requires higher air pressure than a tire with larger contact patch tire with less pressure. Other than sidewall/carcass construction, what is the non propaganda point here related to "50% tire energy consumption"? Ride quality is subjective, effects safety and accident avoidance little, and another topic.
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