UMI O-Ring chains are built in Japan where reliability and quality is guaranteed. UMI O-Ring chain uses the ultimate state of the art technology to ensure performance and durability. All UMI O-Ring chains have solid rollers and bushings for longer wear life and reinforced rollers for higher impact resistance. UMI O-Ring chains also have a unique protruding bushing, designed to reduce kinking and extend O-Ring life. The O-Ring helps to increase the performance of the chain and provide better sealing to keep dirt out and lubrication in. UMI O-Ring chains are recommended for ATVs and motorcycles originally equipped with O-Ring chains or in extreme conditions where standard chains do not perform as well. Available in regular O-Ring or Gold O-Ring. Tensile Strength - 7270 lbs Not recommended for motocycles above 100 HP *Items will ship via UPS or USPS at our discretion depending on size/weight/destination.*There is an additional cost to ship outside the continental U.S. Please contact us first or select the proper shipping option at check out or your order will be refunded and cancelled. Product contained herein has chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information www.p65warnings.ca.gov