www.rotatorrecumbent.com also sells their Tiger SWB as a frame set in steel or Ti. Be warned their website, used to be nice, sucks now, even on DSL it loads like it is connected with a 1200 baud modem. Frame is a monotube, sort of like a 26/20 Bacchetta or Volae. Just looked, seems to load a bit faster, but really retro.