Colony cc sprocket rainbow finishthe cc of the colony bikes cc sprocket simply stands for chris courtenay this park machine needs a proper solid drive and the colony bikes cc sprocket in one part of this the great look is only possible because a cnc machine got used colony cc sprocket features chris courtenay signature sprocket cnc machined from 7075t6 alloy extensive 3d machining for a detailed look available in 25t 28t sizes weight 25t 67g 2 35oz 28t 86g 302oz buy colony