Roll cage questions

[Chip42]

I din't make any assumptions other than a generic steel density. I answered with good, factual, and representative numbers and without getting into full engineering analysis - I added a number of listed tubes just because i thought some might find it interesting. either 1.5 095 or 1.75 080 is a fully legal tube size per SCCA 2699# and under.

Luckily the club doesn't allow crazy tubing sizes. you'll note the thinnest allowed wall is 0.080" - likely to avoid the under-thought engineering shenanigans you suggest I'm proposing.

most cage failures I've seen have been related to the weldments, and I've seen too many - so a good fabricator is the key to a safe cage, the allowed tubing sizes are ALL adequate for the task when built correctly.