Serfas' tough Big City Linked Lock uses 3.5 feet of 12mm-thick hardened steel to ensure your bike stays right where you left it. A nylon cover protects your bike's paint from scratches while a sliding dust cover on the lock protects the internal mechanisms. Plus, 2 keys are included to unlock the ultra strong 16mm-thick shackle.
• 12mm-thick hardened steel chain links
• 3.5ft length
• Protective nylon cover
• 16mm-thick ultra strong shackle
• 2 keys
• Sliding dust cover protects internal mechanisms