Originally Posted by MotoJ
Is 1-5/8" ID A500b schedule 40 pipe (which is rated as structural, used for railings and such) OK to fab a sidecar frame from, or is that suicidal, and only 1-3/4" x .12 DOM tube should be used?
My guess is that what you're being offered is 1 5/8" OD Schedule 80 pipe, with .190" wall thickness.
That's what's used around here for making pipe railings.
I've got a bunch of it in the garage that I'm planning to use for a frame.
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