EK Chain 520 Rv3D Chain The EK Rv3D Series Chain is a pinnacle in chain innovation, marked by its distinctive 3D curved shapes on each outer plate, not only for aesthetics but for enhancing performance as well. Built with a forging process that ensures stiffness and maximum power transmission to the rear wheel, the chain's design includes a dimpled outer plate for added strength and inner plate cutouts to minimize weight and cleaning effort. Additionally, edge cutouts alongside chromium carbide roller pins enable smoother engagement and significantly reduced friction, setting a new standard in chain design dynamics. Features: For competition use only NX2-ring technology Weight reducing cutouts Dimple outer plate Chromium carbide roller pins Compatible displacement: 1,000cc Street Weight per 100 links: 3.35 lbs Tensile strength: 8,902 lbs Includes a rivet type master link