I'm from Perth in Western Australia and I recently bought my first moped, a Bolwell/PGO Arriba. She's a 49cc monster (biggest 49cc you can get here) called Chloe. The Arriba is also known as a T-Rex in Australia. I've had a bit of trouble finding out about her internal workings on the net, though. She and I hoon around the suburbs of Perth causing trouble and harassing anything going slower (pedestrians, birds etc.).
Surprisingly, we don't get much harassment from cage drivers, might be due to her size (more like a motorbike). We love to go on down to Fremantle and have a nosey around the warf and markets. I'm a bigger sized girl but she copes with her big rider just fine and her fastest is 85Kph so far. I still can't convince my Grandma to come for a ride with me (she prays while she knows I'm on it! lol). Chloe weighs around 110 Kilos (heavy for a 49cc) so I tell people a thinner person just wouldn't be able to handle her. My dream would be to go up to a 125cc one day but for now, Chloe and I are happy. One question, what kind of helmets do you all wear? I've got an open face deep blue helmet with a removable face shield.