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Free UK Delivery

It's really simple, if you spend over £25 with us, delivery is free of charge to any mainland UK address (excluding Islands & Highlands).

55,000+ Reviews

Whilst we know a bit about bikes and bike kit, the best road testers out there are our customers, real bikers, just like you. If you're looking for advice on what to buy, you'll find over 55,000 independent product reviews which we've posted, unedited, for all to see. Whether it's a question about sizing, quality or something else, our customer reviews are quite simply, the best place to start.

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Why wait? We now provide some of the best finance packages around to help spread the cost and get you on the road. We now offer finance on most orders from as little as £280 with 0% packages starting at only £300. The online application process is super simple too and takes around only 5 minutes to complete! The best part is, there's no paperwork to print and in most cases you'll have a decision in under 10 minutes. Just select finance as a payment method and take it from there!

200+ Top Brands

There simply isn't a better selection of biking brands anywhere in the UK and we're constantly updating every range to ensure you have the best choice available.

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We simply don't believe in making the sale and moving on, we want to make sure our customers are happy with their purchase. That's why we now offer a full 365 day returns period. Simply relax, take your time and make sure it's right! All we ask is that you try the items within your own home and return with the tags intact.

Award Winning

There's a reason why our competitors spend so much time watching what we do, we believe in customer service levels beyond the norm and we're always looking for ways to improve. In late 2013 we were recognised for this by the bike industry's No.1 publication, Motorcycle News. As retailer of the year, we feel it's our duty to constantly better our offering and if you have any ideas, we'd love to hear from you!

Oxford Boss Alarmed Disc Lock

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in Disc Locks

Ultra strong Oxford disc lock with a 100db alarm

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Customer Reviews for Oxford Boss Alarmed Disc Lock

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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Oxford Boss Alarmed Disc Lock
August 3, 2019

Great product

Really strong & sturdy product. Provides peace of mind however the alarm can be very sensitive when activating and goes off before you get a chance to let go!

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Oxford Boss Alarmed Disc Lock
July 29, 2019

It's big

Big and apparently strong. The alarm is not the loudest I've heard but it is very visible and will hopefully act as a deterrent. I use it around a wheel spoke with a chain as well.

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Oxford Boss Alarmed Disc Lock
July 27, 2019


No lock is unbeatable but the heftiness and visibility gives a sense of security every time I walk away from my bike. It is obviously a quality build and is easy to use- practice and you will soon be able to unlock it without too much trouble and only letting the alarm sound for a second or so.

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Oxford Boss Alarmed Disc Lock
July 15, 2019


Only thing I would say it's too sensitive at times.

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Oxford Boss Alarmed Disc Lock
June 19, 2019

A great deterrent

This is a good strong lock and a big visible deterrent. I have to say that the alarm isn't very sensitive but does go off if moved quite a bit which would probably be the case if trying to get it off the disc but wobbling it a bit has no effect. I think it had paid for itself already though. I had my bike's rear number plate stolen in the car park yesterday?? However the car park security footage shows that the thieves (4 males who pulled up in two scooters) had first checked my bike and the one beside it and were deterred as both were locked to a rail with good security chains. I'm positive that seeing my (Oxford Revolver) cable lock with the addition of this large, highly visible 'day glow' Oxford Boss padlock was what prevented a full bike theft. Nothing is 100% secure these days but these deterrents do work!

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Oxford Boss Alarmed Disc Lock
June 12, 2019

Loud enough

4/5 because it's possibly a bit too sensitive. But it's monstrously thick and will do the job as a belting deterrent

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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!

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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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