Am considering getting into motorcycling this fall by buying a used bike from some impatient clod at a good price. I would commute to work on it and would ride like a completely sane person. My work hours and commute drive are lightly trafficked mostly country roads at 50mph so I'm not too afraid of being run over. (I'd be more afraid of hitting a deer.) I'm wondering if a "sensible" bike, like a Nighthawk 250cc, would save me any money. Stats: Current ride: Saturn SW1, 40mpg, would keep for rainy days. Commute: 12 miles one way. Gas: 87 octane, $2.25/gal. My insurance is very cheap on the cars; am male, married, late 20's, no tickets/incidents since 98. If I added a non-sport bike, what would its insurance run for state-minimum compared to a boring car in the same zip code? What maintenance expenses, like tires, chain(?), brakes would I be in for, and how often? What's the typical life expectancy of a motorcycle; I see many used ones with only 10k miles? I do 99% of my work on the cars; are bikes easier? When their parts get smaller do they get cheaper and are there as many sources for popular bike parts as there are for popular cars? Does everyone run premium gas in their bikes? Basically I'm crunching numbers: expenses per mile and fixed, to legitimize fun.