[CanadianKodiak700]

Not really sure what you're asking here?

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[CanadianKodiak700]

They shouldn't flex enough to move a quarter inch when fastened down. They are designed to be used as a traction aid and ground spacer by rolling tire up on them empty or full.

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[CanadianKodiak700]

Don't know about rubbing or flexing but I got some of the foam pipe cover for insulating 1/2 inch copper pipe. It will compress enough to allow mounting the gas cans and prevent the rubbing, cheers. I used it to prevent that while mounting my ice fishing box on the back rack.

That's a great idea with the pipe insulation

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