Kmc x8 93 8 speed chain highly durable chain with a range of features that make this one of the best 8 speed chains available technologies bulls eye pin the unique kmc bulls eye pin riveting provides unsurpassed side plate retention x sp treatment kmcs extreme stretch proof treatment of pins and plates makes this chain less susceptible to wear caused by sand or other exterior material invading the chain bearings this drastically enhances durability high alloy material pins and plates ma