The Shimano Dura Ace 9000 crankset has the not-yet-available Dura Ace 'cross rings with a 46-39 combination. Note that these are not the hollow machined outer chainrings like the versions that come
Dura-Ace History - Cycling Passion
Dura-Ace 9000 Front Derailleur Setup (with updates) – secondnaturecycling
Amazon.com: SHIMANO Y8L298062 Brake Pads (2015), Black : Automotive
Amazon.com : SHIMANO FC-9000 Chainring 34T-MA for 50-34T : Bike Chainrings And Accessories : Sports & Outdoors