Originally Posted by
elcruxio
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I tried looking for info on what the clamps are made out of since back in the day I remember reading that Ortlieb used fiber flass impregnated plastic for the clamps. But currently any info on what the clamps are made of is fairly difficult to find.
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I remember reading that too. In bright sun you can see what looks like some reflection of the sunlight off the fibers.
Upper hooks can warp a small amount from use, but I have never heard of the upper hooks or rails failing. But the warping has allowed the small inserts for smaller sized rack tubes to fall out.
That is another reason that I like my plastic hose over the rack to prevent chaffing, I use the hooks without inserts and do not have to worry about the inserts from falling out.
Lower hook I believe is not fiber reinforced, can break.