Shimano Tiagra CN-4601 10 Speed Directional Bike Chain 116 Links + Pin Link -L09
Shimano Tiagra CN-4601 - 10 Speed Directional HG (Hyperglide) Bike Chain - 116 Links + Pin Link - L09. Chain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette.