The BOSS ALARM 16MM BLACK + 12MM X 1.5M CHAIN – LK481 is a highly secure chain lock with an integrated alarm. Its 16mm shackle and 100dB alarm, activated by movement sensors, make it incredibly effective against bike theft. This lock has been rigorously tested and approved by Sold Secure, and has earned the Powered Cycle, SBSC, and ART 4* GOLD standard certifications. For added convenience, a key replacement service is available when purchasing this lock. Simply make note of the key number, either on the attached metal tag or laser marked on the key, for easy replacement. Insurance discounts are also available in the UK for those using this lock.

Padlock
Attack tested and resistant to sledgehammer, saw, bolt cropper and drill attack.
Anti-jack shackle design withstands 4.5 tonnes of tensile load.
The removable sealed unit alarm module is vibration-resistant and weather-proof against water, frost and heat.
Very loud 100db alarm.
Can be used as a disc lock or a padlock.
Three keys and replacement key service provided.
Batteries included (6 x LR44).
Combine with 12mm hardened steel chain to give additional security.

Chain
12mm square link chain made from Ni-Cro-Mo alloy steel.
Case hardened chain to resist bolt cutters.
Zinc coated to prevent corrosion.
Protective cloth sleeve to help prevent damage and make it easier to handle.
Long links reduce weight and increase portability.
Fits all Oxford ground anchors.
Can be easily stowed under the seat.
Available in three lengths: 1.2m, 1.5m & 2.0m.