On Guard Mastiff Series #8021 Bike Lock W/6′ Chain

6′ Square-link Chain with integrated lock. Longer 6′ x 10mm (0.39″) titanium reinforced hardened square link chain mated to an integrated X2P Dual Lock Down head featuring new double rubber cover for better protection against bumps and hits. 110cm x 10mm(3.57′ x 0.39″)

• Lighter, more compact package, 10mm hex link steel chain and square bar links are titanium reinforced to resist attacks from saws and cutters
• X4P and X2P locking mechanisms feature four or two point lockdown protection
• Quattro and Dual Lock mechanisms feature Dual Lockdown Protection
• Reinforced sleeve over crossbar and cylinder for additional security
• Locks have vinyl coated large diameter ultra hardened steel shackles and rubber coated end caps
• Water and heat resistant embroidered chain cover prevents scratching and allows compact coiling
• Anti-theft protection plan