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Give us a clue what they look like.
First off, that is the optional over the counter California Sport Touring shield. NOT the factory "barn door" shield that is common. The shield pictured was made by National Cycle with specific mounts for the Guzzi Cali variants. Desirable and very, very difficult to obtain. National Cycle got stiffed by Guzzi, under Aprilia at the time I think, and stopped making them. They would not even make replacement parts for an end user. I know because I asked once. Basically, it is a N.C. Plexifaring 3 slightly modified. IIRC, the part number was NM0002. (Not certain on the number of zeros.) So, if you're looking for mounts for the standard factory shield, nothing pictured here was for the barn door. Just exactly what are you trying to accomplish? Do you want to change completely? Is something broken? Are you trying to adapt something?John Henry