Track equipment has to be able to withstand a lot. The Shimano Dura-Ace FC-7710 Track Chainring selection has been designed to provide the track racer with the sort of gearing options youll need to win, while offering the sort of durability that will ensure that youll get all the benefit from the power youre putting down over countless training laps. The nickel-plated aluminum Dura-Ace chain rings have been constructed to wear slowly and give the sort of power-saving rigidity that will stand-up to the watts that youll need to win your heat. They are made for pure racing. The FC-7710 chain rings are available in teeth options ranging from 47T to 54T. All chain rings come in 1/2 x 1/8. The Shimano Dura-Ace FC-7710 Track Chain rings tip the scale right around 90 grams, depending on the size you get. If you are serious about your track racing, then choosing the best track chain ring on the market will make sure your power is transferred to the boards.