KMC - X12 12-Speed Bicycle Chain (126 Links)

12-Speed
1/2″ x 11/128″
Double ”X” Bridge Shape
Nickel Plated
Asymmetrical Chamfering Avoids Interference
Added Chamfering for Smooth Operation
Phenomenal Shifting Performance
High Rigidity
Highest Pin Power
Double SP exceptional Durability
Outer Plate Chamfering
Inner Plate Chamfering