For the back ... it's a work in progress and I don't really know how to explain it as well as with a final picture but we're taking the piece below, splitting it and attaching it to the frame at the factory mounting points. We're going to build up the piece into a seat pan with glass.
We're using a 3D printer to print pods or cups I guess you could call them, to go into the frame where I made the cuts to remove the back of the bike. That's where we're stashing some LED signal and stop lights.
As for the pipe, I had a new one and had a guy pull it apart by cutting out the tack welds and then he shortened it up and did what needed to be done to piece it back together. He's a wicked dude >
