Well my biggest thing is trying to figure out what reasonable speeds give what mpg. Perhaps a larger displacement bike would actually get better mileage being capable of pulse and glide, whereas a 125cc that's running flat out to keep up at 60mph would do worse?
From running numbers and such it almost seems that if I were to get a 50cc scooter, I almost might as well just run a motorized bicycle - in minnesota we can have 2hp and run 30mph on a bicycle on the street, gas or electric. With the general cheapness of electricity where I am, that would defeat even the best scooters i'd guess in cost per mile without question though i'd still need a 50 mile range or hauling spare batteries with.
However I don't really want to take 2 hours per day commuting when i'm overworked as it is - a straight shot on the highway makes the total commute time just under 1 hour. So i'm still trying to find some bike solidly in the 75mpg or better in the real world at highway speed to do this run since at 50ish I might as well run a geo metro. It's seeming like the Ninja 250 might be one of the best fallbakc choices since it wont be overstressed and is about the smallest bike that can actually pulse and glide by what I can tell, everyone else needing hugely more displacement to do so. There are other 'cool' bikes cruisers and such that even at 125cc I wouldn't mind riding around in the slightest, but it seems they only are capable of better mileage at the slowest of speeds, and they aren't available any cheaper on the used market/everything still over 2k that i've seen.
So partly what i'm wondering now (as the topic shifts away from scooters afterall) is what kind of 'medium displacement' mpg figures are obtainable with P&G on a bike? Because that's a total topic change i'll start a different one along that line.
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