Zelioni have now got a 2023 version (no idea about ABE for the germans)

https://www.gmbvespa.com/modern/shockbraker-modern/zelioni-front-suspension-gts2023-black-glossy

also available with separate High / Low compression adjustment
https://www.gmbvespa.com/modern/shockbraker-modern/zelioni-front-suspension-hilo-edition-for-gts2023-black-glosy


so now another choice than Bitubo front now available for the GTS '2023'

(assuming you are not concerned about country of manufacture - please don't turn this thread into another such)