Hello Vi, the idea is nice and brings some ideas for me too, but Patrick is absolute right when he says that the system doesn't looks very stable. I'm working with welding every day, and when I saw the point where the frame broke, I didn't wondered about the crack. The frame is relative slim at that point and your weld seems are for sure no beauties. I like all your projects, as they include so many clever ideas, and I don't wanna hear something like "his frame broke in heavy traffic and ...". So there are to ways. 1: built the frame geometries that they meet the load conditions better (long lever = high profile) 2. get better knowledge of welding and clean the parts better before welding (no chrom, no paint). Sorry for the harangue but some of that what I saw scares me. Here 2 ideas from me to your suspension project. Maybe they are better (maybe not) regards, Steffen
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