Vortex Chain and Sprocket InstallCountry/Region of Manufacture United States. Regina chain 5zrp/114kho028 520 zrd chain and sprocket kit 520 conversion kit actual product may differ from the item shown in photograph. Photos are for reference only. This item is in the category eBay Motors\Parts & Accessories\Motorcycle Parts\Drivetrain & Transmission\Chains, Sprockets & Parts.