. Shimano Dura Ace chain set FC-7703 model All original, good working condition Good/ fair cosmetic condition - please see pictures for best description Octalink bottom bracket style. Threads are excellent Triple chainrings - genuine Shimano - 53, 39 & 30 T Chainring bolts are very good condition. Crank length - 175mm Please see pictures for a full description of the item. Any thoughts, queries or questions - say hello, always happy to help. Thank you for looking - hope you enjoy our other bike bits :) '
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