Dura-Ace FC-7710 NJS 52T ChainringDura-Ace FC-7710 NJS 52T Chainring The chainring has made little to no mileage, and is therefore still in good condition. It is a 52T 144BCD chainring. Weight: 105 gram. 1 1/8'' Chain width.€ 80,00PriceQuantityAdd to cart