Connex 10SX 10 Speed Chain. With its high grade materials and a high performance plate geometry, it's no wonder that the Connex 10SX 10 speed chain is the German company's best seller. The stainless steel inner link and the innovative high grade nickel coating make this chain extremely resistant to corrosion. Not only that, there's also the optimized geometry of the plates to enable extremely rapid and virtually silent gear changes on all derailleur systems. The newly developed peripheral chamfering of the outer plate ensures optimum gear changing performance. And to withstand the high forces of cross gearing under load, Connex developed a completely innovative process for radial riveting. This radial riveting of the pins, in combination with a special pin coating, guarantees top performance and long wear, even for narrow width 10 speed chains. Additionally, this chain includes the renowned Connex Link which provides a simple, tool free means to connect or disconnect the chain.