KMC Z8.1 8-speed Chain GrayThe KMC Z8.1 8-speed Chain is a great choice for any 8-speed bike out there, no matter the style. It includes an inner plate chamfering design that helps the performance of the chain as it moves through the derailleur system. This chain has a 7.1mm pin length, and has a full length of 116 links. The weight of the chain is 352 grams.766759040512