is this for Dura Ace BB-R9100 Bottom Bracket?
Hello, This would fit a 9100 bottom bracket, however, I am afraid that this has now fully sold out and is no longer available. I would recommend the socket below as a replacement. https://www.sigmasports.com/item/Abbey-Bike-Tools/Dual-Sided-Dura-Ace-and-Ultegra-Bottom-Bracket-Socket-Tool/J221 Kind Regards Liam