Shimano Dura-Ace 7901 10-speed Chain Review:
Shimano’s chain has asymmetrical design, which provides better shifting and helps to prevent chain suck. This chain is at the top of Shimano’s range. The 10-speed chain provides the best interaction between your chain and your chain set. It provides maximum power transfer.
The inner plates of the chain are specifically designed and contoured to consistently deliver smooth shifting under load so you can expect efficient pedaling and near silent running. Durability is ensured by Shimano’s chroming process on the link pins and heat treatment of the rollers, pins, and plates.
Overall, the zinc alloy silver finish offers resistance to corrosion as well as an increased chain life.