The Shimano Ultegra 10 speed CN-6600 Chain is a super narrow chain for 10 speed drivetrains. The Shimano Ultegra 10 speed CN-6600 Chain provides smooth, reliable shifting when used with either Dura-Ace or Ultegra 10 speed components. This chain is relatively lightweight, weighing only 280 grams (116 links). The Shimano Ultegra 10 speed CN-6600 Chain is not compatible with 9 speed systems. OneTri is one of the premier retailers for the Shimano Ultegra 10 speed CN-6600 Chain.
