The Z1SL and Z3SL are in production! We introduced these new designs
in 2004, and they're currently in the works. An exceptionally
lightweight bike providing high performance - and weighing less than 2
pounds! (850 grams)
Bob says, "This bike is not just for the racer --- it is built for the
rider who wants the ultimate lightweight frame."
http://www.parleecycles.com/news.htm