Hello from Southern Maryland. I am going to attempt to build my first trike, I have several older bike, 92 Yamaha Seca II and a Vento (similar to Harley Herritage soft tail). I would like to the use the "goose neck" from the Yamaha and build a 30 degree rake fork using the rear swing arm from the same bike with this concept.
Any suggestion for the tubing size is greatly appreciated. Thank you.