KA-T: You were correct with your design based on what sparco used. The other people were correct with their remarks about flat stock bending under load.
I would not worry about it too much. Looks like you have 1/8" thickness on the down bars, and since rotational angle of the harness bar would pull up in a crash, then it would only pull on the flat stock. This was also mentioned.
On that note good points from both parties, but we would prob all agree if we viewed this bar in person.
"No brawling, or its 15 days in the county jail."
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