In 2004, Triumph released the Rocket III—the largest-capacity production motorcycle, a full 2,294cc of three-cylinder madness. Why? Good question, we're not really sure, but we are grateful the company did. Riding a Rocket III is a unique experience; the massive capacity engine pulls like a train, regardless of what gear you're in. While the design engineers at Triumph's Factory Custom team were still slightly wobbly on welding fumes from building the mad Bobber and Scrambler prototypes, we're guessing that is when they spotted a spare Rocket III in the corner and got to thinking. What they came up with was the obvious choice—of course once you've got the largest-capacity production bike, the only thing to do is make the engine even bigger.