Kmc x10 sl silver 10 speed chainworld class professional racers have proved that kmc chains provide the right dna to help you become a champion as well as kmc team champion riders it is important that the same chain quality is offered for all kind of riders kmcs 10 speed chains are compatible with all major shifting systems shifting performance durability and easy mounting are other key attributes of kmc chains we have the perfect chain for all type of riders the worlds lightest 10 speed