http://www.brezzisamuele.com Brezzi Samuele Collezionismo is based in Tegoleto, Arezzo, and focused on providing parts and accessories for vintage and historic Italian motorcycles. The company’s main activity involves the sale and faithful reproduction of various components, including exhaust pipes, lights, seals, decals, and electrical systems, catering to collectors and restorers of classic bikes. Also, available is a generous variety of hard to find and NOS parts.
https://www.ebay.com/str/santodimotocicli is a highly-rated seller with 100% positive feedback, specializing in NOS and vintage parts for classic motorcycles, primarily focusing on Italian brands. His inventory is categorized by type, including Manuals/Literature, Gaskets/Seals, Electrical/Ignition, and Engine/Transmission, with a strong emphasis on parts for marques like Harley-Davidson Aermacchi, Gilera and Benelli. Also offered is everything from rare carburetor components and wiring harnesses to complete cylinder kits.
https://www.marcoleonardi.org/mostre.html A comprehensive list of all Italian vintage motorcycle swap meets for the current year and beyond.