I'm helping a friend of mine sell a Rieju RS-1 race bike. Although it's not technically a moped (no pedals), I thought someone on this forum might have some interest in it.
The bike was originally imported to the US from Spain to run in a 50cc racing series at Virginia International Raceway, and my friend bought the bike after the series ended. The motor is a 50cc AM6 (same as in the Aprilia RS-50), and you can buy big-bore kits to bring it up to 70cc if the power just isn't enough. There's a 6-speed gearbox and a clutch. Brakes are AJP and suspension is Showa. It's been stored in a clean, dry garage without fuel in the tank, and it's in excellent condition.
There's no title, since the bike was brought over for racing and never registered.
He's asking $800, but he'll consider all serious offers, and he just wants to see the bike go to a good home.
You can find more information about the bike at http://raleigh.craigslist.org/mcy/2259434576.html