>> Shimano Dura-Ace Di2 7901 10-Speed Chain

Shimano Dura-Ace Di2 7901 10-Speed Chain

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The asymmetric design of the 10-speed Dura-Ace chain improves shifting precision and smoothness due to different inner and outer plate chamfers and dimensions. While still saving weight without giving up strength, this chain offers higher durability, silent pedaling, and reduced chain drop even under intense pressure.

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