... ,530,630 Alloy steel High tensile strength O-Ring and X-ring Motorcycle Chain - Gold PlaedThe service life of chain is ... the no. 1 in Chinese chain association, be recommend to worldwide.- Model: 420,428, 428H,520, 520H, 525, 525H, 530, 530H ... - Color available: Natural, Blue, Brown, Nickel, Copper O-Ring and X-ring Motorcycle Chain - Gold Plated 428,520,530