BCD 110mm, 4-arms. Compatible with Shimano Dura Ace FC-9000, Ultegra FC-6800 or SRM Origin cranksets
79 / 28g
100% made in Italy.
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<Tech info>
Are these chainrings Shimano Dura Ace 12 speed compatible?
The short answer is Yes.
They are not DA 12sp specific, but they do work well. The chain is the well-established "CN-M9100" that was adopted by the XTR 12 speed group.