Fuel economy is a new concept in the 80 mph motorcycle world except for BMW who has been good for decades. Manufacturers were mainly interested in making high performance toys. The Ninja250 is cammed for high rpm power but is small enough that Vetter style aero mods can get one close to 100 mpg at 65 mph. Honda has made a big commitment to fuel economy with the NC700X, the upcoming CBR500R, and the CBR250R. All of which can break 70 mpgUS right off the showroom. I get 95 mpg on my CBR250R when riding full tuck but some taller riders that sit up run out of power at 80 mph. I can get 75 mpg at 80 mph on a trip. Similar aero mods will push this bike 15% past what the Ninjas can do. My Honda PCX150 scooter tops out at 65 mph and gets 98 mpgUS at 50 mph. Some 125cc air cooled bikes in India top out at 50 mph and get 140 mpgUS at 35 mph and cost $1500 brand new.
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