I am experimenting with a gas engine again. The experiments are with a weed whacker motor but I will most likely buy a gasoline friction drive kit. I am tired of the battery and trailer thing to be honest. I don't mind the slower speed or the short distances between chargers for the most part but frankly the cost of lightweight batteries and the charging times just make it seem as though for the most part a gas bike is better for me at least.
I know it isn't green but that's life. If you want green, make the batteries cheaper and more efficient. Which is not the same as making gasoline bikes too expensive to ride. That's the socialists idea of improvements. Don't make the new technology cheaper, instead the lefties say make the old technology more expensive through false costs.