The Road Dog is one of the more infamous bikes ever made due to its over the top length and just overall crazy assness. There’s no way this thing isn’t going to get some attention. Here’s a bit from Wikipedia about it and the builder:

The bike was built by “Wild Bill” Gelbke who graduated from college in Wisconsin as an electronic engineer and moved out to California for additional schooling. After which, he worked as an aircraft engineer for McDonnell Douglas and Hughes Aircraft. It was during this time he decided to turn his talents towards motorcycles. In the early 1960s he relocated from Los Angeles to Chicago, and opened up his own shop, the Gelbke Motorcycle Co.

The “Roadog” was a prototype of what he thought motorcycles of the future would be like.

Starting in 1962, he began to assemble his custom motorcycle. Unlike conventional motorcycles, which had a tube steel construction, Wild Bill chose 4130 chrome-molybdenum tubing for the frame.  It was powered by a 152 cubic inch (2.4L) four-cylinder engine from a Chevy Nova II. It featured a two-speed Automatic PowerGlide transmission and included a reverse gear. The bike also had shaft drive.

When it was finished, the Roadog weighed a phenomenal 3,280 lbs. Due to its enormous weight, Gelbke couldn’t use a conventional kickstand; instead, he installed four hydraulic rams, one at each corner, controlled by the rider.

Featuring a 126 inch wheelbase, and a length of over 17 feet, the massive bike had a turning radius of 110 feet.

With the intent of making it a cruising bike, Gelbke immediately took it on the road, covering over 20,000 miles the first year. The bike was seen in most of the Southern United States, making trips to Los Angeles, Texas, Louisiana, and New Jersey.”