EK Motor Sport "EK Chain 530 Z 3D Premium Chain - 150 Links - Black/Gold Size: 530 Style: DRIVE CHAIN / Z/RING TYPES Color: BLACK/GOLD Warranty: EK O-ring and Quadra-X ring chains are warranted against defects in materials and workmanship for 24 months/unlimited mileage (for street use) or 12 months/unlimited mileage (for off-road use). This warranty is not applicable in som cases. See EK's site for all details.