The Dura Ace R9170 11-Speed Groupset Di2 is a high-end groupset designed by Shimano, featuring 11 speeds and a precise 11-tooth smallest sprocket. This cassette is a crucial component for cyclists looking to achieve optimal performance and efficiency on the road. With its durable construction and smooth operation, the Dura Ace R9170 11-Speed Groupset Di2 is a top choice for serious cyclists seeking superior gear shifting and overall performance. Shimano checked cranks are available.
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