I’d love to see this monster rolling down Sturgis Main Street during the 2010 Sturgis Motorcycle Rally. It would definitely turn some heads — not an easy thing to do in the midst of the world’s largest gathering of bikers.

You have very expensive custom bikes parked all over the place. You have tattooed men with horn hats. You have dogs with goggles. You have women wearing practically nothing. And then there’s the guy who drags a wooden cross up and down Main Street every year. It all blurs together in a colorful carnival of sights, sounds and smells.

But this big bike would stop traffic even in Sturgis. At more than 11 feet long, the GUNBUS 410 is the world’s largest running motorcycle, according to its maker, Leonhardt Manufacturing of Eppingen, Germany.

The GUNBUS is powered by a 410-cubic-inch V-2 engine. The rear tire is 42 inches in diameter. But the seat is 32 inches, so you really can ride it. (But I’d hate to try parking it in Sturgis.)

Leonhardt built the GUNBUS prototype in 2008. The company said it will produce the bikes in a small series — the only thing small about this motorcycle.