Quote:
Originally Posted by zstroken
Round will be your strongest geometric shape.
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I'd disagree. Round is going to give you the most torsional strength. Square tube would likely be stronger in the bending moments that'll be put on it.
Remember, the forces on them is almost solely rotating the axle and shoving the end of the bar into the frame.
That being said, I'd build it out of round because it looks so much better!
And I personally like the style with a shackle up front. a 'floating' ladder bar. Much less binding.