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Oxford OF8 Boss Alarm Disc Lock with Free Chain

£84.99 £169.99(Save 50%) Available - Next working day delivery when ordered before 3pm.


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Oxford OF8 Boss Alarm Disc Lock with Free Chain

Oxford OF8 Boss Alarm Disc Lock with Free Chain

Oxford OF8 Boss Alarm Disc Lock and Chain

The alarm lock that works. The Oxford Boss Alarm disc lock combines an extremely tough and easy to use disc lock with a 100dB alarm. Now with a 1.5m Chain.


  • Can be used as either a disc lock or as a padlock when used with an optional chain
  • "Thatcham" vehicle security approved
  • 5 year life cycle tested (by Thatcham)
  • 100 decibels built-in alarm
  • Anti-drill gate
  • The latest semi-elliptical key technology
  • 10,000kg bolt cropper cut proof
  • 4500kg anti-jack strength
  • Waterproof, vibration proof, heat proof, and frost proof

Click the download button below to view the size guide document for the Oxford brand.


A long-running success story, Oxford Products are based just outside their namesake University City. Started in 1973, Oxford Products have gone from strength to strength and now export their own products to 60 countries worldwide, as well as distributing some World Class brands like HJC Helmets and Alpinestars.

Oxford Products themselves have led the way in a few areas too; Oxford Lifetime Luggage is the benchmark soft luggage-travel anywhere in the world and if there are bikes, there will be Oxford Luggage fitted to some of them. Hotgrips by Oxford Products are second to none – some clever technology (for example, if your battery voltage drops, the Oxford Hotgrips know to cut out rather than completely kill your battery) means they are the choice of riders like the Russian Police force. Since many of the staff at Oxford Products are active motorcyclists, products are tested and developed in the UK, in the same weather and conditions as most of our customers and us.

If you’re reading this thinking about tucking your motorbike away for the colder months, may we suggest you look at the range of Oxford Products Battery Optimisers – great value and offer at least as many features as the competition. Many of our customers use their Oxford Products battery optimisers on cars and even boats - an Oxford Optimiser 600 has saved many of us here from unplanned battery purchases for the last few years!


Delivery costs

To find the delivery costs for an item simply place the item in your basket. Our delivery costs for most items are based on each item's size and weight. Delivery and handling estimates that appear in the basket are calculated with our lowest cost delivery method

Free delivery over £25. Next day delivery if ordered before 3pm.

Orders to UK Mainland addresses over £25 (i.e. excluding Highlands and Islands) will be sent with free carriage.

Free Shippping to other destinations

  • Orders will be shipped free of charge to areas other than the UK when the order total is over:
  • UK Highlands and Islands: £100
  • Europe Zone 1 - e.g. Eire, France, Germany £250
  • Europe Zone 2 - e.g. Greece, Poland £400
  • USA, Canada, Australia - £800
  • Items Shipped outwith the EU will include a form which can be used to claim back approx 10% V.A.T. Unfortunately this excludes BFPO addresses. Please note, V.A.T. is not applied to crash helmets.


The average review for this product is 4.6 stars

Too many characters!

Tough looking product
Oxford products, so you can expect good quality. Easy to use, and can use it with alarm on or off.

12/09/2017 14:33

Secure & steady!
Ready good lock and super strong chain. It does what is supposed to. The alarm is not as sensitive as the review indicate, sensitive enough if someone is trying to move the steering or the chain it triggers. Only down point water gets inside the lock and in due time i believe it could damage the entry point, rather than that works like a charm!

12/09/2017 14:33

Great lock, great service.
The product came as specified and in a timely fashion. The lock and chain both work well (my bike hasn't been stolen, or even attempted at, and I leave it parked on the street in Clapham overnight...).

12/09/2017 14:32

Outstanding Lock, Best Quality A*
This is the 2nd one I've had as I stupidly gave the other one away when selling my old bike. Great saving on my insurance and peace of mind would recommend to anyone who cares about there machine, not only is it really strong but it looks so huge I hope it keeps thieves away.

12/09/2017 14:32

Bought this to use as an alarm on my bicycle at home. The padlock fits around parts of the frame, and the chain is super chunky. For cyclists, it's not something you want to carry around with you, but if you've got room on your bike, sure. Sometimes it goes off with no apparent reason, but can't really fault it.

12/09/2017 14:32

Great product but a bit sensitive
Very good overall product! My cruiser is nearly 20 years old and the discs don't have big enough holes in them to fit it through and as i have chrome spokes it can be a bit fiddly to fit it. With the great strength chain that i got with it though this makes it nice and simple to use. I have found that the wind can set it off though!

12/09/2017 14:31

Brilliant idea
This is a great bit of kit and I got it at a bargain price. It's a really heavy duty padlock and chain and the alarm is LOUD!! The only issue I have with it is that you only have 5 seconds to lock or unlock it, would be nice to have a little longer.

12/09/2017 14:31

Mega deal on Ultra Strong Lock and Chain
The Oxford Boss Alarm with 14mm chain was a fantastic reduced price, with multiple security endorsements including Thatcham, so recognized by my insurer. Delivery was included in the price and arrived quickly

12/09/2017 14:30

A good solid product
This is a substantial 'U' bar lock and chain. The alarm feature on the U bar is useful and very sensitive. With just five seconds after locking the bar before any movement sets the alarm off, you need to arrange the lock and chain in position carefully before locking it. There is a bit of a knack to this but it's soon learnt. Since the alarm contact is on one arm of the bar only, it is possible to use the U bar without the alarm feature (by reversing the arms of the bar in the shackle) and this may be useful in situations where you don't want the alarm to be triggered, for example if your bike settles slightly on its side stand in blustery winds or when a large vehicle goes past, or if you have an inquisitive cat at home. The battery pack is easily removed using the Allen key supplied and the six button cells are of a type readily obtainable, when replacement is needed. The dispatch of my unit appeared to have been overlooked in the run up to Christmas, but after I called to inquir

12/09/2017 14:30

Good product
Good product but just a little too sensitive when lock and unlock it.

12/09/2017 14:29

Good product good price
Feel like my bike is much safer with this alarm lock and chain on. Great deterrent, easy to use. Can lock alarmed and un-alarmed for traveling with. Would recommend.

12/09/2017 14:29

oxford disc lock alarm
It's a big chunky lock with a decent chain, alarm works well but really needs to be a little louder, but on the whole a good piece of kit.

12/09/2017 14:28

Great value combination
Bought the lock and chain as a package deal, far cheaper than just the lock alone. My only complaint would be that the chain is a little on the short side, however the length is stated on the description so I only have myself to blame. Goods came quickly and well packaged.

12/09/2017 14:28

Brilliant lock.
Ideal lock to keep your mind at rest, when your not able to sit and stare at your pride and joy!! Fast delivery service and kept well up to date on parcels progress!!

12/09/2017 14:28

Excellent lock.
I like the alarm feature and the size of this lock. It fits snugly through the brake disc and caliper support. You can't roll the bike at all. Combined with the hefty chain and alarm, bike seems pretty secure to me.

12/09/2017 14:27

Good substantial bit of kit
Good substantial bit of kit, delivered promptly and excellent value for the two items compared to their individual cost from other suppliers.

12/09/2017 14:27

Very good but has a hair trigger
This Boss alarmed disc lock feels very solid and is easy to fit and use. It's brightly coloured so should warn off thieves. It came with a decent chain as well so good value. However, my only issue is it's very sensitive, so you need to make sure its not going to move even slightly after locking or it will go off. Even a strong breeze will set it off. Still, at least you know it's working...

12/09/2017 14:27

Excellent service!
No real point in reviewing the products (Oxford OF8 Boss Alarm Disc Lock and Chain), since they are well known. What was impressive was delivery from Infinity to my door in less than 24 hours from order! Simple online system, easy pay, next day delivery and secure packaging. The items were in tip-top condition and worked. If only all online buying could be this good!

12/09/2017 14:26