The KMC e12 EPT Chain is designed for use with 12-speed eBike systems. This exceptionally durable chain features KMC's Eco ProTeQ treatment for superior anti-rust protection.Features KMC's highest pin power for unsurpassed riveting geometryEco ProTeQ offers superior anti rust capabilitiesKMC's Triple X durabilityDouble X bridge shape allows for precise gear shiftingThis chain is eBike compatible thanks to its high torsion resistanceInner plate chamfering allows for expeditious shifting1/2" x 11/128"Item SpecificationsChain Connection TypeSingle Use Master LinkColorSilverDefined ColorSilverDesigned for ebikeYesDrivetrain Speeds12Half Link ChainNoLinks136 KMC e12 EPT Chain Chains UPC: 766759712037