Shimano Ultegra CN-6600 10-Speed Chain - 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 - Chain Connection Type: Pressed Pin - Color: Silver/Gray - Defined Color: Silver - Drivetrain Speeds: 10 - Half Link Chain: No - Links (links): 116 - Weight: 280 grams - Width: 6.1mm

Super Narrow SIL-TEC HG-X11 Chain (11-speed) FEATURE - Rear drive Smooth driving without noise - Front drive Preserve chain security at cross chainline - Front & Rear Shift Smooth and reliable shifting BENEFIT - HG-X11 special asymmetric plate design for 11-speed - Weight: 247g (114Link) - SIL-TEC on Plate/Roller - Hollow pin - Weight: 247g (114Link)

- 9-speed compatible - XT/Ultegra - 116 links

CN-HG701-11 Super Narrow HG-X11 Chain (11-speed) FEATURE - Directional 11-speed chain - More efficient and silent, less maintenance - MTB, Road, E-BIKE 11-speed compatible - Reinforced chain for E-BIKE use BENEFIT - Smooth and reliable shifting performance - Weight: 257g (116 Links)