DOM by far better- all the way around. My real frankenbuggy is 1-1/4" sched. 80.DOM (gas pipe)(current weight 376 lbs.) It's heavy but solid.Yes it expensive but how much will it cost to have your chassis fold up on you out in the south forty? You almost need to be a structural engineer to design a solid frame from .095 unless it's chromoly. Kliff says that chromoly is hard to work with but I've never had an issue other than the COST.An alternative tubing to price- find a local Fire protection sprinkler company and see what they'll sell you a 10' or 21' stick of pipe, nearly all there pipe-thread or clamp style is DOM.
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