Peak Ascent Cycles on X: "Shimano has issued a safety notice and voluntary recall on DURA-ACE and ULTEGRA branded cranksets produced before July 2019, affecting the models: Ultegra FC-6800 Dura-Ace FC-9000 Ultegra
Shimano Dura Ace FC-R9100P Di2 172.5mm power meter With Brand New 53-39 Rings | eBay
Shimano R9100P Review | Dura-Ace Power Meter FC-R9100-P