In addition to the electric powerplant, the second main component of the Vision DC Roadster is the tubular frame structure that spreads the length of the motorcycle and adds additional rigidity where traditional motorcycle components—fuel tank, battery box, etc.—would otherwise be located. The frame itself has also been styled with milled grooves running the length of the bike, which not only creates a stunning visual effect but also once again ties back to BMW’s early aesthetic in the art-deco era. The bike’s unique frame structure allowed engineers extra room for design to further its streamlined, modern appearance.