Build a long-wheelbase low racer recumbent bicycle

Step 8 Strengthen the steering tube

Cut and grind the top tube from the donor bike. Cut a piece of 1" electrical conduit to fit from where the top tube was, across the old seat tube (now the front derailler tube), and then to the main tube. Grind a birdsmouth so it will fit the steering tube and the proper angle to fit the main tube. Grind a birdsmouth in the front derailler tube and weld in place - make sure it is straight and centered or it will look goofy and cause you to crash when you're staring at your goofy-ass support tube while careening down a hill. Really watch the heat with your welder - this metal is thin.

Congratulations! You have the basic frame completed. We now need to build the remote steering, the seat, and assemble!