The Incredible Fuel Tank Tamper is now on the market. After several years of research it is finally available to the public. The "FTT," as we call it here at our engineering lab, lets you compress the fuel in your tank so you can put in more! With a typical motorcycle fuel tank that holds 5 gallons, you can easily "tamp" it down and get a 6th gallon in there.
Check it out at Frank, the Real Biker.