Shimano Ultegra CN-6600 10-Speed Chain

Stress-free operation is one of the most important features for road bike components. Ultegra leads in all-day riding comfort with smooth braking and shifting.

Ultegra is "pro-proven" as it is a direct trickle-down from the Dura-Ace groupset.

• Optimized for HG sprocket to provide fast and precise rear shifting performance
• Chromized rivet pins improve wear resistance
• Zinc-alloy plated outer link surface treatment