54 tooth Shimano Dura-Ace FC-R9200 12-Speed Chainring - $200 (redwood city)

Selling a used one time Shimano Dura-Ace FC-R9200 12-Speed Chainring. It's a 54 tooth for all you big boy racer watt monsters! Only used on one 30 mile ride so only minor scrapes on the inner sire from shifts.