Do tyre savers made of a chain catch debris as effectively as tyre savers made of a wire? Are they practical?
Just by looking at these, my first guess is that that the main difference between the chains and traditional wire ones is that the chain will bounce against the tire and not touch it for the most of the time. It will make a rattling or tingling sound, and add much less rolling resistance than the type that constantly drags against tires. I'm not sure if it makes any difference in puncture protection, because the effectiveness of the wire contraption is questionable to begin with.