Tank bag "EASY LOCK" da necessarily combine with specific flanges (BF_ _) With the new Easy lock system for bags da tank, any type of magnetic straps or patelles used so far for fixing the bag to the bike are eliminated; thanks to ad small flange to mount on the cap of the tank, and the particular structure of the base of the bag, for the coupling of this it is enough to place it on the flange, and apply da a slight pressure until you feel the classic "clack". Equally easy is the removal of the bag; to release it, it is enough to pull a red lever positioned in the base. LE flanges da mount on the tank vary depending on the type of cap, and it is therefore necessary to check in the list of compatibility which flange is compatible with your motorcycle model.