CURT 57000 Relay Kit for Nissan Armada, Titan channel 4 7 8" inside width accepts most Length:72" 4 7 8" inside width accepts most types of fat bike tires Add on cradles are designed to replace existing cradles Adjustable cradles accommodate various bike sizes and styles Tray style design allows for easy loading and unloading of bikes Compatible with all CURT tray style bike racks Durable black powder coat finish Limited lifetime warranty (one year finish converter switch mode technology Recommended for applications where over current protection is required Fits Nissan Armada or Titan without tow package This relay kit is made for certain years of the Nissan Armada and Nissan Titan without a factory tow package