Nylon head inserts for tire changer mount and demount heads - Function and design - Duck-head shaped nylon inserts that fit most common tire changer mount and demount heads - Designed to ease mounting and demounting tires without excessive effort - Material - Made from nylon plastic for rim protection and smooth operation - Protection and performance - Installed on the inside of the steel mount head - Protects wheels from scraping and gouging caused by metal contact - Helps prevent wheel damage during mounting and demounting - Compatibility and installation - Compatible with most common tire changer mount/demount heads - Can replace the metal roller on machines that originally used a steel roller - No modification required; simply unbolt the steel roller and bolt in the nylon insert - Benefits and use scenarios - Reduces risk of wheel damage during tire changes, suitable for alloy and aluminum wheels - Durable and easy to install, providing a practical upgrade to existing equipment - Use scenario 1: routine passenger car tire changes in a shop - Use scenario 2: upgrading an older tire changer to nylon rim protection - Use scenario 3: converting a machine that uses a steel roller to nylon inserts without hardware changes