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Oxford Boss Alarmed Disc Lock

Best Seller
in Disc Locks

Ultra strong Oxford disc lock with a 100db alarm

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Was $92.09

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Customer Reviews for Oxford Boss Alarmed Disc Lock

Oxford Boss Alarmed Disc Lock
December 22, 2019

Good solid lock

A good solid feeling lock and the alarm is hopefully a good deterrent for the chancers out there.

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Oxford Boss Alarmed Disc Lock
December 16, 2019

Oxford Boss Alarmed Disc Lock

Heavy shackle type disc lock can be used with or without alarm. Alarm quite loud and sensitive when armed. Appears to be robust but I hope it's never tested.

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Oxford Boss Alarmed Disc Lock
November 27, 2019

Nice and sturdy

This lock is really big, bulky and bright, so thieves will definitely run away when they see one of these. The only thing I could ask for is for the alarm to be a little bit louder. Not that the alarm featured in this one isn't loud, it is, it's just that it would be nice to have an alarm that makes your ears want to explode whenever you hear it.

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Oxford Boss Alarmed Disc Lock
November 11, 2019


Good lock, very easy to use and nicely sensitive, a good weight too. 2nd bought as I left the first on the kerb!!!

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Oxford Boss Alarmed Disc Lock
November 11, 2019

Good but quiet

The lock seems strong enough to resist most attacks and is definitely visible enough to act as a deterrent. The only let down is the volume of the alarm. It is noticeably quieter than the warning beeps before it.

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Oxford Boss Alarmed Disc Lock
October 14, 2019


Good little disc lock. Only issue is that it is VERY sensitive. If you lock it and then move it ever so slightly it will go off.

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Oxford Boss Alarmed Disc Lock
September 23, 2019

Not the loudest

I already have a ulock for the front and this does not fit through the back disk, so limited options on where to put it. That said the warning beeps are louder than the alarm which is quite under whelming.

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Oxford Boss Alarmed Disc Lock
August 28, 2019

Easy to use

Really simple design, as advertised works with a chain if needs be so slightly on the large size for a disc lock. Alarm is plenty loud enough and is sensitive enough without going off all the time. Just make sure its secure where it sits and any covers don't interfere to avoid it falling and then going off

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Oxford Boss Alarmed Disc Lock
August 28, 2019


Very visible deterrent and pretty sensitive too. This made the insurance company very happy!

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Oxford Boss Alarmed Disc Lock
August 19, 2019

Good product

Good product, But till perfect if think it's need better alarm (too silent, the beep's is loud, but alarm is silent).

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Press Reviews for Oxford Boss Alarmed Disc Lock


Oxford Boss Alarmed Disc Lock

  • Oxfords strongest ever lock
  • Removable, sealed unit alarm module
  • Water, vibration, frost and heat-proof
  • 100db alarm
  • Includes batteries

Chain not included

Oxford offer a range of security products which have been tested and approved to various international security standards. Motorcycle theft remains a growing problem, both in the UK and abroad. Every year more motorcycles are stolen, more motorcyclists are disappointed and inconvenienced and even more is spent on anti-theft insurance policies.



Established in 1973, Oxford is now one of the world's leading suppliers of products to the two-wheeled industry. From its base in Oxfordshire, the company distributes to over 75 partners worldwide and has its own subsidiary in Jacksonville, Florida, serving both North and South America. Its huge range of products encompasses everything which makes life on bikes better; from clothing and helmets to accessories, hard parts, locks and luggage and more!

See all Oxford products
Questions and Answers

Questions and Answers

  • Is the alarm set separately from the locking mechanism? I'm just thinking about when its stored in a top box when travelling.

    April 28, 2019

    To de-activate the alarm, insert the shackle into the lock so that the red band is not next to the arrow on the case.

  • Does the Alarm include a minder cable?

    May 22, 2018

    The alarm is not supplied with a reminder cable.

  • How long is the chain?

    November 30, 2017

    No chain is included,you will receive a lock only.

  • I'm going to be buying a NC750x will this disc lock fit this bike at all?

    November 22, 2017

    We are not able to advise on fitments to specific bikes, but the measurements of the 16mm shackle are 41mm width and the length (depth) is 53mm. These are the internal measurements of the shackle.

  • The hole in my disc is 6 mm. Will this fit in the holes?

    March 5, 2017

    The Oxford Boss Alarmed Disc Lock is available in 14mm and 16mm shackle sizes, and so the shackle would not fit the holes in your disc.

  • Is this the Oxford Big Boss Alarm. Part no.OF4?

    February 13, 2017

    The 14mm shackle is Oxford part number OF3,and the 16mm shackle is is OF4.

  • Could you please tell me what the batteries are and are they easy to remove?

    July 27, 2011

    The battery type is LR44 1.5V and replacement procedure is fully covered by the comprehensive instructions. Spare batteries are available to purchase at Sportsbikeshop.(See link below)

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