Oh, final ramble…welding brackets or anything onto thin tube is a total bastard with OA, same for welding to a thicker section. I’ve been welding two stroke pipes but the spring clips and brackets I braze on - you can weld, but it’s SO easy to blow holes. Imagine this would be the case for cable hangers and stuff on bike frames. Brazing is probably stronger for lap joints like that anyway.
Oh, final ramble…welding brackets or anything onto thin tube is a total bastard with OA, same for welding to a thicker section. I’ve been welding two stroke pipes but the spring clips and brackets I braze on - you can weld, but it’s SO easy to blow holes. Imagine this would be the case for cable hangers and stuff on bike frames. Brazing is probably stronger for lap joints like that anyway.