KMC DLC 11 Chain - 11-Speed 118 Links Black/BlueKMC DLC 11 Chain 11 Speed 118 Links Black Blue. KMC DLC 11 chains features an extra hard surface (diamond like coating) that reduces abrasive wear and provides optimal stability. Hollow inner and outer plates and pins to reduce weight and help shed mud Features inner and outer plate chamfering to aid in smooth shifting Triple X durability KMC chains are put through a heat treatment process three times to maximize strength so the chain last longer and