I can squeak out 5% better fuel economy on my 2011 Honda CBR250R than I get on my 2013 PCX150. Both are over 100 mpgUS, 42.5 km/L, 2.35L/ 100km. But most "normal riders get 75 mpg on the CBR250R and still get 100 on the PCX. I did 99.5 mpgUS for my 1,000 mile/ 23 hour trip on the CBR in bad weather. The PCX will top out at 67 mph with sliders instead of rollers. The CBR can hit 92 mph, 150 kph stock. A bit faster with longer gearing. Most of the modern bikes now have fuel injection, catalyst, and O2 sensor, so they don't stink up the place. And start first try and run perfect in any weather.
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2018 CBR300R Overview - Honda Powersports
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2018 PCX150 Overview - Honda Powersports
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