Shimano CN-6600-10 Chain - 10-Speed, 116 Links, Silver/Gray 50off With a 3D fit nose

With a 3D fit nose for added comfort and a frame built to fit most faces from small to large

with a snug heel pocket and a medium instep

Reinforced cable connectors and ladders

SensiFit footbed for precise comfort with Thinsulate Liner for better warmth

Shimano CN-6600-10 Chain - 10-Speed, 116 Links, Silver/Gray 50off With a 3D fit noseShimano 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