Below is an SVG diagram a part I intend to use in my rear suspension:
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Why use 3/4 X 3/16ths flatiron? Because it's what I've got lying around. (In the same vein, why use SVG to make a diagram? Because I don't have photoshop and I can barely use GIMP, but I'm good with XML. In other words, both are what I've got to work with).

Here are the plans for the bars (there will be a total of 8 of them).

Rear Suspension Frame of my velo:



The one upright piece is being held in with clamps because it hasn't been welded in yet. Once it is, 1" sections of pipe will be welded horizontally to the top and bottom of the upright pieces that DON'T have holes in them.

Below is the basic rear wheel frame of my velo:



It, too, will have 1" sections of pipe welded horizontally to the upright parts. I've taken pictures of my model to show how the diagrammed parts will work.






So there are four of them for each wheel frame.

Do you think what I have will be sturdy enough to hold 200-300 lbs of velo and 250 lbs of fatso (me?) Or should I figure out something stronger?






*Sighs, looks at his post* I'm not making a lick of sense, am I?