This is the Shimano Ultegra CN-6701 10-Speed Chain. The Shimano Ultegra CN-6701 10-speed road bicycle chain uses optimized plates for improved power transfer and shifting performance.
The Shimano CN-HG701 is Shimano's XT/Ultegra-level chain specifically designed to work with 11-speed MTB and Road drivetrains. Featuring Shimano’s new…