By the way, we have a 2006 Burley Rivazza. It's a medium frame, and of all the brands we considered, it was the closest we could find to fit us both. We're both 5'9" and most tandems are made for a larger pilot and smaller stoker. So, it doesn't "really" fit me nearly as well as it should. We learned just how much so when I got my first single last week. The saddle is like three inches farther away from the handlebars as it is on the tandem.

We are considering moving up to a Zona eventually. You can get those custom made. Not cheap, but from what I understand, SUPER sweet bikes. I don't know if they come any lighter than a Zona. The couple that runs our cycling club has both a Burley and a Zona. They absolutely love their Zona and ride very competetively. They are the one's who encouraged us to get the Burley, though, since it was closer to our price range. Not particularly cheap, either, but a little more affordable.

Burely doesn't make tandems anymore, by the way. 2006 was their last year. So, if you did decide to look for one, it would be used.