The Peanut Tank is officially back. When the H-D Forty-Eight came out two years ago sporting the 2.1 gallon retro fuel container, it might have been seen as an aberration. Now that two Harley models sport the tiny tin, it’s definitely a trend. My first bike was a Sportster, and back then, we couldn’t get the things off fast enough (to trade up for a larger tank), so that we could increase our range to more than 50 miles between fill-ups. For us it wasn’t retro; it was merely the inconvenient truth of riding a Sportster.