CN-6600-10 Chain - 10-Speed, 116 Links, Silver/Gray front hub Improved all new proprietary Sidi

Improved all new proprietary Sidi wire material is non-binding for intuitive and effortless on-the-fly adjustments

This is not your ordinary protein bar

This results in consistent power

Compatible with traditional pull 8

CN-6600-10 Chain - 10-Speed, 116 Links, Silver/Gray front hub Improved all new proprietary SidiShimano CN 6600 10 Speed Chains Hyperglide 10 Speed chain Ultegra 6600 and 105 5600 chains are recommended for use in conjunction with Ultegra 6703 and 105 5703 triple Optimized chain for HG sprocket which provides a fast and precise rear shifting performance (especially during downshifts) Chromized rivet pins improve wear resistance Zinc alloy plated outer link surface treatment