Okay, I may have gotten my head rest and bars sorted. I am not using a Perez clamp. Mine stripped out so it's gone. 1st, I slid some foam grips to the top. Then I slid two 6" pieces of innertube slid over the ends of the head rest bars to prevent rattling inside the frame. Then, there is electric tape wrapped around both bars where they enter the frame to prevent the bars from sliding in or out. A couple of taps with a rubber mallet and they fit snugly.
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As you can see I have a very small underseat bag that fits perfectly.
Rear view: The helmet fitting straps fit just above the foam
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I'll get another side pic but removing the Suspension Head Rest flattened me out as predicted. I have the helmet tilted as far forward as possible and I think this will be okay.
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