Originally Posted by Steve Hellums
Am I missing something in the picture posted in the evosport site about the phenolic spacer's? Just looks like a couple extra thick gaskets

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A few years back I worked for a company that made power converters; some for space/satellite use. They mounted on the interior wall of the satellite shell, when in orbit and spinning, the temperature changes from cold to hot were extreme, a similar type of spacer was used to insulate our product from thermal shock.
I assume that's what these spacers do. But I have yet to try them.