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Chain Lock Oxford Big Boss Alarm 200 cm

A strong 12mm square link chain with a loud 100dB alarm to protect your motorcycle against any possible danger. more

E-shop: 2-4 days

154,90 €

incl. VAT

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Your order includes

  • 2-year warranty


The Chain Lock Oxford Big Boss Alarm is Oxford’s strongest ever lock with an integral alarm. It boasts a 12mm square link chain, a padlock that has a 16mm shackle and an ear-splittingly loud 100bB alarm which is triggered by movement sensors (the padlock can also be engaged without setting the alarm). The alarm unit is removable and sealed (waterproof).

The shackle can be used as a disc lock or a padlock. Both the chain and the shackle have been tested against drills or bolt croppers – the anti-jack design of the padlock can withstand up to 4.5 tons of tensile load. The cloth sleeve protects not only the motorcycle’s paintwork but also the lock from dust and mechanical damage. Last but not least, the lock comes with 3 (replaceable) keys.

Technical description:

  • Very loud 100db alarm
  • 12mm hardened steel links
  • Double locking mechanism
  • 16mm hardened steel shackle
  • Can also be used as a disc lock
  • Removable sealed unit alarm module is vibration-resistant and weather-proof against water, frost and heat
  • Dust cover to protect the lock barrel from dirt ingress
  • Cloth sleeve protects paintwork
  • Independently tested and approved by Thatcham and SBSC Intygad Product testing facilities, and awarded ART 4075 (Big Boss Alarm padlock) and ART 4076 (chain) certification
  • Material: Ni-Cro-Mo hardened steel
  • Length: 200 cm
  • Link diameter: 16 mm
  • Alarm loudness: 100 dB
  • Battery: 6 x LR44 (not included)
  • Comes with 3 (replaceable) keys
  • Note: The lock has a key replacement service so that if you are unfortunate enough to lose all your keys a new one can be made up. Just remember to take note of your key number and keep this in a safe place


Product parameters

Length 200 cm
Lock type chain, alarm
Locking mechanism key
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