The kryptonite new york fahgettaboudit chain lock is made of triple heat treated boron manganese for the ultimate strength in a chain it features 14mm six sided hexagonal chain links with a narrow inner width to defend against leverage attacks the new york disc lock ensures maximum security while the nylon protective cover keeps your bike scratch free this chain lock features double deadbolt locking making it one of the most secure locks on the market the lock is available in two sizes and