Connex 808 8 Speed Chain. The Connex 808 is as strong and resilient a chain you can get for your 8 speed, 7 speed, or 6 speed drivetrain. Constructed of high strength steel, the 808 also features nickel coating on both the inner and outer plates for superb resistance to corrosion. Furthermore, the optimized geometry of the plates enables 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. Additionally, this chain includes the Connex Link which provides a simple, tool free means to connect or disconnect the chain.