Rival Xplr Etap Axs Rear Derailleur - 12-Speed, 44T Max, , D1 Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Rival Xplr Etap Axs Rear Derailleur - 12-Speed, 44T Max, , D1 Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...