Kryptonite's New York Chain is for riders needing security in moderate to high crime areas.  The EV series 4 Disc lock has a flat keyway locking mechanism for great holding power and massive picking resistance.   An extra strong crossbar will withstand pull and cut forces - so, overall a very solid chain lock.As a testament to the strength and performance of the New York Chain, is has been approved to Gold Sold Secure standard - the highest rating a lock get receive.  FeaturesFour-sided trapezoidal chain links made from triple heat-treated boron manganese steel for ultimate strengthNarrow inner width of individual links prevent leverage attacksEV series 4 Disc lock has flat keyway locking mechanism for extensive holding power and high picking resistance and an ovalised, extra-strong crossbar to withstand pull force and cut force14 mm hardened steel shackleSliding dustcover protects and extends cylinder lifeLong chain is versatile and easy to useBoth chain and lock defy bolt cutters, sa