OK... I admit I am a newbe here to the forum and I dont want to russel any feathers but i was thinking of building my own frame. The thing is, when I do a search for frame material I keep coming up with posts where people are using "Thin wall Electrical conduit" for there frames. Now I am no expert at frame building but I do alot of electrical work and I am concerned about the strength of thin wall and the welding penitration it is after all "galvivized" and thats not good for the lungs. So I guess my real question is , is there correct tubing to use to put these together? and/or what about using bike lugs for the connections?