So far when i am towing my cooker the grid seems to be intact when we arrive at our destination ,I would be more concerned with the shakes and bumps that the lid can/ may receive during transit. It may be plausible that such everyday knocks could lead to failure. I know that on my cooker the grid comes out of the rubber mounts when I tow. I have tried renewing the mounts but to no improvement. So now I lay a tea towel between the grid and glass before travelling. This keeps the grid in place.
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