I will only be using these to go wheeling on the rocks. I am saving up for wider housings and so I can swap the center sections and the disk brakes on my F & R Currie 9. Thanks for the help.
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Don't get wheel spacers. Especially if you're planning on rocks.

If you want to move your wheels out, get some cheap steel wheels with less backspacing. It'll cost about the same as spacers and be a lot more secure.