The Dura-Ace/XTR CN-HG901-11 eleven-speed chain is 9 grams lighter and 20% more durable than the CN-7901. The CN-HG901-11 is 5.62mm wide - slightly more narrow than the 5.88mm 7901 chain. One of the key features of the CN-HG901-11 chain is the Sil-Tec coating that contributes to a claimed 20% increase in durability. The special PTFE coating also provides a smoother feel during shifts and less drivetrain noise even when cross-chaining. Chain pins for installation are included with the chain.
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