Just a good dealer - or maybe good customer. Mark said they were double walled and shouldn't turn so they would take care of it under warrenty. I don't even recall asking. BTW, the chrome sprocket cover had a tiny defect in the chrome and they are sending it back for a new one. Strange concept - if they keep the customer happy, he may come back for more goodies! I think it also helps that they only sell and work on Triumphs.