The Kryptonite New York Noose Chain Lock is one of the most secure locks available. This sturdy chain lock is crafted from boron manganese steel, a material known for its durability and bolt cutter defying strength. The Kryptonite Chain Lock is easy to transport and its protective covering ensures your bike stays free from damaging abrasions. The bike lock chain’s unique sliding dust cover adds to the locks cylinder longevity, preventing wear and tear. The Kryptonite New York Noose Chain Lock is also approved to a Thatcham CAT3 standard. Kryptonite New York Noose Chain Lock Features 10 mm six-sided hexagonal chain links made from triple heat-treated boron manganese steel for ultimate strength, including a larger cinch ring Narrow inner width of individual links prevent leverage attacks EV 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 force 14 mm ovalised hardened steel shackle Sliding dustcover protects and extends cylinder life The disc cylinder now includes an anti-float feature to keep the discs from moving and readjusting when in transit Long chain is versatile and easy to use Both chain and lock defy bolt cutters, saws, hammers and chisels Weatherproof protective nylon covering allows coiling for easy carrying and protects paintwork Approved to Thatcham CAT3