While walking through Sydney's Chinatown on the weekend I spotted the bike below sandwiched between a mundane collection of scooters.
It was minus all the plastic bits, but is still being ridden.
I am fairly sure it's a Honda NSR250R (MC21) from 1991.
They were never released in Oz, so this would be a grey import.
I gather they put out 45HP standard and 60HP de-restricted. With a dry weight of 132kg they could do 185kmh (45HP) and 215kmh (60HP).
Sounds like fun!