Does anyone do it? I'm trying to but here's my break down. Gas is about $3/gallon. My car gets 35mpg or $0.08/mile. My CTX gets 70mpg or $0.04/mile. Seems like the bike is in favor, but you have to account for more frequent tire changes. I changed out my first set early because OEM was crap in the rain, but lets assume I can go at least 10k miles on a low powered touring bike such as mine. So it would cost the car $800 in fuel and the bike $400 in fuel. The Angle GT's going by Revzilla prices in my sizes would be $297 per set. If I drop down to Shinko 016 tires I pay $215 per set. One more drop to the 011 tires and I pay $180 per set. Harbor freight tire changer and the rest are all paid for so no additional cost to swap them out. Oil is every 8K per the manual and I use cheap but good Rotella T for $20 plus a filter for a few bucks more. So, it looks like I can save a little but if you throw in sprockets/chains then the margin narrows even further. Does anyone else ride to save money?