Tanner Faust posted a picture on Twitter this morning of a few Polaris side-by-side vehicles. This got me thinking...

Looking closely at the roll cage, they look like they are constructed of bent tubing. Assuming it’s steel tubing, does putting a bend in it like that weaken it? Or does it depend more on how the actual tubing is bent? I’m certain that someone like Polaris knows what they are doing, but I am curious...

I know I’ve seen two different styles of bends - one with a constant radius and one where you can see it’s been more pinched over than anything. Does the style of bend have an effect on overall strength?

Example of a bend that has a more constant radius:

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Example of a pipe that’s bent that doesn’t have a constant radius:

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