Opened box but unused Strength. Chain Life. Lightweight. Slim Profile. The 520ERVT X-Ring sealed chain is arguably our most well-rounded, do it all chain! Part of our Exclusive Racing Series, the 520ERVT is designed with off-road rally style racing in mind for its long chain life, lightweight design, and great strength. With its slim profile, this chain is also a great option for the Honda L series of bikes. Max CC: 500cc Tensile Strength: 8,440 lbs Weight (100L): 3.22 lbs Seal: X-Ring Chain Life Index: 3,500 Pin Length: 0.736" Pin Diameter: 0.206" Inner Plate Thickness: 1.8 Outer Plate Thickness: 2