The new asymmetric design of the Dura-Ace chain has redesigned plates that improve the contact interface with the cogs and reduces the chance for chain suck on the chainrings.

Other improvements to the links provide greater durability and life with less noise and smoother highly loaded shifting functions.

The chain uses hollow pins and perforated plates to drop weight while maintaining strength, for a chain that offers durability, silent pedaling and reduced chain drop even under intense pressure.

Specifications:

• Model: CN-7901
• Chain Type:  Super Narrow HG for 10-Speed
• Cassette Compatibility:  10-Speed
• Pin Link plate:  Hollow Link Pin
• Roller Link Plate: Plated
• Length: 116 links
• Supplied with 2 joining pins
• Average Weight:  252 grams
• Made in Japan