How thick of metal for frame connectors

i use a 2x2 tube when i build them and it is .120 wall probably over kill on the wall thickness but its what i use.
Thank you vitamindart, that will give me something to start with, I an going to stay 1''X3'' for my street ride :glasses7:

0.125" thickness max.
Thank you for the Max thickness :glasses7: this does help a bunch :cheers:

2x3 .120 wall is what I use
I am seeing more 2X3 being used so far, I like Scott's flat 1'' X 3'' for my
driver and it hides better for my use. Thank you :glasses7: