I have been buying bikes for 30 years but never had picked up any bmx before. I picked up two schwinns with a bunch of balloon tire stuff. They were pretty easy to identify early 80s scrambler and 90s predator. The Gt is certainly much newer and has been hard for me to identify. It has a 4130 frame and odd to me crank arms. I assume it’s more higher end as performance goes as the schwinns. Anyway $600 cash or trade for the three.