TC Bros 530 Heavy Duty X-Ring Motorcycle Chain TC Bros 530 Heavy Duty X-Ring Motorcycle Chain is designed for maximum durability and reduced friction, featuring X-Ring technology that outperforms conventional roller and o-ring chains. Pre-stretched and shot-peened for longevity, it includes a master link for easy length customization. Ideal for Xs650, Cb750, and Sportster hardtail frames, it boasts a tensile strength of 9,660 lbs and ensures smooth driveline operation with less maintenance. Features: 530 size 120 links X-Ring construction Master link included