For over 40 years, Kryptonite has been the leader in action sports security. As the creator of the original bicycle U-lock in the bicycle security category in 1971, Kryptonite has set the standard for premium quality security products. From the early days in a VW van, to the legendary NYC stories, to the numerous prestigious awards the company has received for design and innovation, the Kryptonite story is about much more than a product.
9 mm four-sided chain links made from 3t manganese steel.
Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability.