Kmc kool knight chainkmcs durable half link chain with the added protection of full body armour to protect you when grinding the knights away 12 x 18 100 links pin length 95mm compatible with bmxfreestyle nickel plated half link design super smooth adjustable kmc chainsfor many years kmc has enhanced the technology behind bicycle chains through research development continuous innovation and valuable feedback from the worlds top professional racers kmcs pursuit of perfection has