Oxford Monster Disc Lock

Great visible deterrent - I got the yellow one. Portable, a thief would have difficulty accessing the hasp

Solid heavy lock, with an easy opening and locking mechanism. 3 keys is great too. Bought mine at a reduced price (should've been £75+) so brilliant bargain.

Weighty but ergonomics are good...surprisingly easy to fit in a pocket.
Seems very sturdy overall.
Very visible in yellow,
Shackle/pin part is thinner than I thought it would be, but it is well protected by the outer case.
Fits very easily on the disc.

Good price, delivered very fast.

I love this product. Bought it for my 1250GSA and the convinience of having a secure lock, that can be on me all the time is amazing. I feel much better knowing my bike is secure and with a copule more layer of security, it puts my mind at peace.

Yet again, service from Sportsbikeshop is top notch.

Having recently watched scumbag thieves on CCTV steal my bike from my drive, I noticed how they ignored my neighbor's better, and more expensive bike - his bike had a disc lock! I was stupid enough not to use a lock. So after careful review I settled on the Oxford Monster. I chose the yellow one because it's so noticeable. Everyone knows that a determined scumbag thief will get what they want, but this is not an excuse to give up and let these lazy scum have an easy time with stealing. I learned the hard way. GET ONE!

Excellent product, strong and heavy enough to sink a dingy! Would highly recommend.

I got the yellow version, so it works as a disuader. Chunky and solid looking it will make chancers move onto the next bike. The design is such that it's very awkward to get an angle grinder on the bolt, so they'll have to cut through the body, taking time, another deterrent. Ultimately I don't know how long it would take someone to cut it away but since a professional will cut through any lock anyway, I'll go for ease of use and deterrent value every time. That's where is scores a five stars. Quick and easy to put on, no fiddling once you spend a minute understanding how it works. Make a note of how the key fits and it's easy, if you just keep fiddling until you get it tight, it's a pain. Spend the minute! And it's a lot cheaper than other locks which don't provide any more protection.

Perfect heavy duty lock. I use it for my chain.

Really solid bit of kit… it's big and heavy (750g) and only just fits under my Street Triple seat. It has a large u-shaped shackle that can be a bit fiddly to thread through the disk, but I have complete confidence it will do its job. Other locks come with a reminder and case… this one doesn't.

A reliably solid lock from Oxford, easy to fit round the disc, easy to remove. Heavy but not too heavy so easy enough to carry on the move. Needed to get a separate reminder cord though.

Heavy duty lock. the only downside the keys seem to be not very robust

Great lock . Excellent service from SBS as always .

Great price, great product only thing is it only just fits as my bike has large discs and with only a few millimeters of clearance to wheel rim but it fits so it's fine. Put a bit of electrical tape on shackle to stop it scratching paint on rotor .. highly recommend as its a solid bit of kit.

Does everything you'd expect. Solid lock.

Small & compact - easy to fit hopefully enough to deter a would be bike thief - you need to buy the curly cord separately though, I think it's slightly disappointing that it does not come supplied with the lock