JT Sprockets 520Z3 Super Heavy Duty X-Ring Chain Designed for larger-displacement street bikes, JT Sprockets' Z3 Chains are engineered for unbeatable strength and rigidity. Their super heavy-duty construction features thicker plates, measuring 2.2mm for inner and 2.5mm for outer plates, making them ideal for high-performance applications. Features: X-ring seals produce less friction and seal better than conventional O-rings Rivet pressed four times for added strength against lateral forces on the outer plates Thick (2.2mm inner / 2.4mm outer) plates Solid bushes to prevent distortion from repetitive shock loading Includes rivet style master link Specifications: Tensile Strength: 9,347 lbs Max Displacement: 1000cc (Street) Weight: 4.12 lbs / 100 links