Curved base bags are not compatible with this flange (ie: XS308, 3D604, ST603)
This fitting is needed in order for the Givi Tanklock tank bags to work. It is bike specific and is used to attach the Tanklock nylon ring which comes with Tanklock bags to your tank.
Click here to use Givi's part finder to find the correct fitting for your bike.
Note: Picture is indicative only. Bolt holes will be laid out differently for different models.