Do you really need that much gas?
Maybe not, but I ride it 30 miles to work and back, and this saves me from having to carry a cup and empty can for premixing at a random gas station... for a few days at a time. That and I never have to worry about running out of fuel in the middle of nowhere. Plus there is all the fun jokes related to the usage of a keg. Like trying to convince people that my bike is fueled by stale beer.
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