World class professional racers proved that kmc chain provides the right dna leading to the championship next to our champions it is important to offer a chain for all kind of riders kmcs 9 speed chains are compatible with all major shifting systems shifting performance durability and easy mounting are other key words for kmc chain kmc have the perfect chain for all type of riders key features kmc x9 super light chain 116 links compatible with any 9 speed derailleur system 12