Shadow Interlock Supreme ChainFrom the original Interlock half link chain that changed BMX drivetrains forever in 2003, Shadow has always had one goal, to create the best BMX chains ever made. 13 years later and we can confidently say we have done that. With our tried and true Interlock V2 and the introduction of the unparalleled Supreme chain, Shadow has pushed the limits of chain technology far beyond our closest competitor. Utilizing a forging process in the link construction,