Shimano CN-6701 10-Speed Chains
 
For Ultegra 6703 and 105 5703 triple drivetrains, please see 10-Speed Hyperglide non-directional chains
Hyperglide 10-Speed chain
Directional inner & outer plates designed for better contact with gear teeth allow smooth shifting even under high load conditions
Chromized rivet pins improve wear resistance
Perforated plates for reduced weight
Zinc-alloy plated outer link surface treatment