## DID 520ERT3 Gold Drive Chain for up to 450cc Motorcycles This DID 520ERT3 G&G gold drive chain is a top-of-the-line product designed for motocross motorcycles up to 450cc. Engineered for extreme off-road conditions, it offers unparalleled strength and performance. ### Strength and Reliability The DID 520ERT3 chain boasts 25% greater impact resistance and 3% higher tensile strength compared to its predecessor, while maintaining the same weight. The ERT3 designation indicates a hyper-reinforced O-ring-less construction, ideal for motocross and supercross. Cold-formed, seamless bushings further enhance durability and precise operation. ### SDH Technology The implemented DID SDH system (chrome-carbon outer layer of inner pins while maintaining a soft core) ensures extreme wear resistance. Inner pins, hardened in the SDH process, perfectly absorb shocks, while the hard outer coating protects against abrasion from contaminants. ### Performance in Extreme Conditions The 520ERT3 chain has been tested and used by professional motocross teams such as KTM, Honda, Yamaha, Kawasaki and Suzuki. The 520 size (roller distance: 15.88mm, width: 6.35mm, roller diameter: 10.16mm) is a motocross standard, guaranteeing compatibility with most motorcycles. The gold color of the rollers and plates (G&G) gives the motorcycle a unique look. ### DID Quality The DID brand is synonymous with quality and innovation in the field of drive chains. The 520ERT3 chain is a testament to DID's commitment to delivering top-class products that meet the expectations of the most demanding users. An average tensile strength of 37000N confirms the exceptional robustness and reliability of this product.