
Factory Manufacturing Premium 520 Race Chain for Street Track Bikes Matches Rk 520gxw's Strength & Durability. Extended Service Life: X-ring oil seal extends service life by 1.5 times compared to standard O-ring chains. OEM and ODM Support: Full customization available for color, tensile strength, and product type. Premium Alloy Steel: Made with high carbon alloy steel for superior strength and wear resistance. Lifelong Warranty: Provides lifelong service coverage for mechanical defects and technical support. High Tensile Strength: Features 40kN tensile strength, exceeding standard motorcycle chains of same spec. ISO 9001 Certified: Manufacturing process and quality control certified under ISO 9001 standards. Universal Compatibility: Matches all types of motorcycle sprockets available in the global market. Low Noise Operation: Advanced sealing technology reduces friction and ensures quiet, smooth riding.