RK Chains 530Zxw Chain RK 530Zxw Chains are specifically designed for today's heavy, high horsepower bikes and extended swingarms. Made with the best reinforced components and RK's original XW-Ring for maximum strength and wear-life. Features: Tensile Strength: 11,200 lbs Max CC Rating: 1,400cc Master Link Included: Rivet type ZXW is perfect for large, high-displacement and extended swingarm machines