I use 18-gauge cold-rolled steel for both the frames and fenders. its very strong and easy to work with also. As far as the fenders be care that you dont burn thru the fenders edge, as it is much thinner that the steel(it's like tim metal once you remove the chrome. Good luck.
Hey, so it’s been awhile. Got my bike frame painted recently. One of two frames I made; I had all my parts stored away until now.
I’m going to assemble soon but I have a question. How do you set up the rear brake arm if it’s been bondo’d up?