2008. The Ack Attack, piloted by Rocky Robinson, had a meet top speed of 319 mph. They are prepping for the Top Speed Shoot out on the Salt Sept 22, 2008.
Two weeks later at the Top One Shootout Rocky and the Ack Attack regained the top spot in the world with a record just over 360 mph.
This IS the fastest motorcycle in the world.
From 2008 Motorcycle Land Speed Trials by BUB