I feel like it was Tri or Ironman person. I mean, obviously. Biopace was actually pretty cool..but..it led to bouncy cadence at higher rpm. It's like a time-capsule of bike tech for the last 30 years. Quintana Roo made Tri bikes for a while..they were the cat's ass for a while. I don't have any interest in the vintage stuff..but yeah, some funky tech in there!
I'd say Ironman for sure. You don't need that much fuel for shorter tris.I feel like it was Tri or Ironman person.