428 Motorcycle chain: 1) Material: Carbon steen 2) Color: Natural, blue, yellow, black 3) Standard: ISO 428 Motorcycle chain's specification:1) Material: Carbon steen + Advanced heat treatment2) Color: Natural, blue, yellow, black3) Standard: ISO4) Packing: a chain + a polybag + individual box + a carton (25 pcs/carton) 428 Motorcycle chain