With a quantity of three pieces, the Screw 6x12 is the most used part in the REAR FENDER diagram.
The lowest price component in this Rear Fender parts-list fiche is the Bolt.
The twenty-four Gsxr1100 1986 (g) (e01 E02 4 6 15 16 17 18 21 22 24 25 34 39 53) Rear Fender component parts are all listed in this schematic.
