i bought this set because the reviews show that they fail at times and the visor they are attached to flies off while riding. i just bought a 13 series helmet and haven't used it yet, in saying that it is discontinued and parts are hard to come by like trying to find a visor- not available anymore. my experience was very positive with joe rocket. i should have done more homework before buying a discounted product. over all i didn't want to have the ratchets fail and not be able to find replacements.