Kmc x11 el silver 11 speed chain a good quality chain can make a big difference to the performance of your bicycle drivetrain and kmc are a fantastic chain to use strong light corrosion resistant using a kmc chain will ensure that your drivetrain is performing as well as possible the kmc x11 el silver 11spd chain is a top performing nickel plated chain featuring kmcs double x durability has an open inner and outer plate design weight 252g links 114