Everyday Chain Lock for Quick City Stops The Kryptonite Keeper 785 Integrated Chain is a practical, easy-to-use lock for daily commuting and errands in low to moderate theft-risk areas. Its 7 mm four-sided chain links are made from hardened steel to resist common hand tools, and the integrated lock head means there is no separate padlock to juggle when you are locking up. At 85 cm (2.8') long, it is flexible enough to loop through your frame and a wheel and reach typical racks or posts, without leaving a lot of extra slack for thieves to work with. A weather-resistant sleeve helps protect your bike’s paint and keeps the chain quieter when carried in a pannier, basket, or cargo box. Simple. Solid. Reliable. 7 mm four-sided hardened steel links provide dependable everyday security. Integrated lock head keeps the system compact and easy to handle at the rack. 85 cm (2.8') length is sized for locking frame and a wheel to most city racks and posts. Keyed cylinder with two included keys for straightforward daily use. Durable nylon sleeve protects your frame from chips and scratches and helps quiet the chain in transit. Best as a primary lock in lower-risk areas or a backup to a U-lock in busier city locations.