The Royal Enfield as currently produced is a throwback to the mid 1950s, same style and engineering as the original with very little change until just this past year. The 500cc thumper is a very basic machine with British bloodlines and pretty much the performance you would expect from a mid 50s half liter single, which is to say, it could use a boost. Paul Carberry, down in Australia, had the idea of adding another cylinder and creating a V-Twin out of the basic engine, doubling displacement, giving it a satisfying sound and getting a nice performance increase at the same time.