Kmc k710 kool chain specification 12 18 max speed of sprocket 1 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 led to repeatedly being honoured with the industrys top design awards kmc currently produces in excess of 100 million chains every year kmc only makes chains all kmc research development efforts f