## 520ZSE Drive Chain, Z-Ring, up to 500ccm, Clip+Full and Hollow Rivet, Regina Enduro Ultralight [group] This high-quality Regina 520ZSE Enduro Ultralight drive chain is the perfect choice for enduro motorcycles up to 500ccm. Designed in collaboration with leading Enduro Racing teams, it combines exceptional strength with an ultra-lightweight design, ensuring optimal power transfer and long-lasting performance in the toughest off-road conditions. ### Strength and Precision The Regina 520ZSE chain features the innovative Z-Ring seal, the successor to X-Ring and O-Ring seals. The Z-Ring flexes during installation, creating a spring effect that guarantees sealing and long-term protection against contaminants, even under intensive use. Its high average tensile strength (33800N) ensures safe and reliable operation. ### Fit and Installation The 520ZSE chain is compatible with the standard 520 size (roller distance: 15.88mm, width: 6.35mm, roller diameter: 10.16mm). The set includes both a clip for quick installation without tools and a rivet for a permanent connection using a chain breaker tool, offering flexibility and convenience depending on the user's preferences. ### Style and Regina Quality The gold and black color of the chain gives the motorcycle a sporty and dynamic look. The Regina Chain brand is synonymous with quality and innovation in the field of motorcycle drives, guaranteeing long-lasting performance and product reliability. ### Benefits: * Ultra-lightweight design for optimal power transfer * Durable Z-Ring seal for long-lasting protection * High tensile strength (33800N) * Clip and rivet included for convenient installation * Stylish gold-black finish * Quality and reliability of the Regina Chain brand