Sram's flat-top chains are specifically designed for modern 12 13-speed drivetrains and are characterised by their distinctive flat top profile. This design allows for a narrower chain while still providing high strength and durability.Flat-top chains are exclusively compatible with sram's 12-speed axs drivetrains or transmission t-type. They are not compatible with other 12-speed systems or older sram groups.Kmc go wax benefitslong lasting: once applied, the wax dries to form a protective barrier that outlasts oil based productsless dirt: waxed chains attract less dirt, minimising the common causes of wear and ensures a smooth operation at all timesbiodegradable: free from pfas and harsh solventseasy to use: easy to apply and the chain does not need to be dewaxed before rewaxing.Silver nickel-plated coatingnickel is an alloying metal primarily used for refining steel. With corrosion resistance, enhanced hardness, and proves highly effective as rust protection.Gold ti-n coatingtitanium nitride is a chemical compound of titanium and nitrogen. Offering extreme hardness and corrosion resistance. This special coating has an ultra-smooth surface, and is extremely durable against the elements.1 2 X 11 128 126 linkswaxed with kmc golow weight due to slotted inner and outer plates and hollow pinsmissing links includedcompatible with all sram 12- 13-speed derailleur systems using flat-top chainsweight per 110l: 230 gramsrecommended care intervalsroad bikes: kmc recommend to care f...