Givi Bf73 Tanklock Ring Harley Davidson Sportster S Easy on, easy off. That's what Givi's Tanklock Ring is offering for your Givi Tankbag (sold separately). This tank ring easily attaches to your gas cap, and will securely hold your tank bag right above the tank to prevent scratches, and features a quick-release lever for when you're filling up or removing the tank bag. Features: Easily mounts to gas cap Keeps tank bag off of the motorcycle's tank Easy installation/removal of certain Givi Tank Bags Audible click when mounting tank bag Quick-release lever for tank bag removal Note: Givi Tanklock Ring is only compatible with Tanklock or TanklockED Tank Bag models (sold separately).