Get ontherivetthe c13 utilises the same vulcanised natural rubber and organic cotton top of the cambium line yet weighs150g less than the popular c15 model this is accomplished through a continuous carbon rail that eliminates performance resistant contact points and saves weightfinished with aluminium rivets in all black the c13 is the first in a new lightweight cambium range from which various new models will follow tested in the arenberg forest by david millarcomfort at its lightestlengt