These Drawings are for guidance only before cutting any steel work out how you would like the trike to be yourself to suit your size, your forks & the VW you are using (condition of the tunnel)
This design is not copyrighted you are welcome to use as much or as little of this design as you like, but please Weld Strongly & build safely

I do not have a photo of box section before fitting to the tunnel on this trike, but it is simmilar to my 1st vw trike photo here

This photo shows the 2"x1" box section from the headstock to the outsides of the tunnel