Premium Gold Series X-Ring Chain. The PT520 XRC uses proprietary X-Ring technology that was tested exclusively to handle the extreme temperatures and conditions of offroad riding and racing. Designed for up to 750cc offroad MX and ATV applications. Lightweight, ultra high-strength chromoly construction with a 7,700 lbs. tensile strength. CHAIN PITCH: 520   NUMBER OF CHAIN LINKS: 120  COLOR: GOLD PART NUMBER: 023107 Please ensure fitment prior to purchase. If you have questions, please contact the seller. Not responsible for improper or ill fitment due to incorrect year, make & model given by buyer upon purchase.