I know what you mean, I had concerns about metal. I wanted to make this whole thing out of plastic but working with metal was just easier. I figure with the width of the piece in the event of an accident it’s unlikely to pierce the helmet. I have the same size aluminum and plastic bolts to give the cam the ability to break away. I’ll probably change it to a plastic bolt, thanks.
You can achieve the same result in a safer manner using moldable glue like Sugru, no need to attach anything metal to your helmet. But its your choice! The AGV helmet I use has a very pointy chin on it and it worked great.
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