My coach has borrowed a carbon Calfee tandem & won multiple Master's National Championship races with it! & I bet it's a great feeling ride too! Loving all the info - we toured in Alaska with our (I'll-fitting) Santana. And we saw it getting loaded onto our plane - in one box (no couplers) by one guy. He just heaved it. When we got to Alaska we had to buy a new big chain ring :-(. Still not sure if we would really use it to fly places or not. Tokie