the shifter and hand brake were scratch made from copper pipes bought from Lowes Hardware, a standard copper T joint allows the "shifter" to spin back and forwth freely

as you can see its connected to springs on each side to keep the shifter centered, as you pull the shifter towards you, upshift as an example, the front spring expands pulling it back to the center, the rear spring actually gets pushed backwards and pushes the switch located behined it, completing the circuit