Oxford Beast Lock

Very heavy lock . I don't see thieves even attempting it to be honest . The only negative is the actual lock where the keys goes has no cover so is open to the elements all the time . Can be a little tricky to get the key in at first

Seems very sturdy and combined with the Beast lock is probably the best motorcycle lock system you can buy. Not cheap but you get what you pay for. Recommended.

Great sturdy lock, looks hard to break - could do with a small cover over lock barrel.

Very well mage, good quality, will make the thief not want to even try to steel it.

Is a BEAST for a reason..paired with the BEAST Chain its definitely stopping the low life's from robbing your pride and joy

Expensive , but you don't get many of these to the pound .
If there is a way of persuading any potential thief to go elsewhere, this Is it. Other reviews have suggested improvements such as a cover on the key way. Perhaps a squirt of oil may do for now!
If you are looking for a heavy weight lock…. This is it.

Its a brute.. And if this doesn't make a potential thief think twice, then they need their head looking at.
Its weight alone is impressive,

The only downside, they should have put a cover of some description on the keyway. At this price, if its damaged by water ingress, then its a pretty poor shout.

To get it out the way - this thing is a beast by name AND nature; you're not going to be putting this in your pocket and taking it with you.
That being said, if you're after a real tough lock for the garage (or wherever else you keep your bike) this is perfect; paired with the Beast chain, it's sure to be a real pain to any would-be thief; Sold Secure seem to agree, given they've given it the highest motorcycle diamond rating.
The lock came with three keys.

Sportbikeshop brilliant service!
I purchased the complete package with the Beast lock, chain and anchor has achieved a Sold Secure DIAMOND rating, ensuring it is able to withstand forceful and sustained attacks. To be awarded a DIAMOND is no small feat. The Beast has passed attack tests from a huge range of tools, commonly used by thieves including, pliers, bolt croppers, drill, and most impressively a 90 second angle grinder attack. One of the best security packages on the market keep any motorbike secure.

I bought this to go with the beast chain. This thing is sturdy and seems well built. It weighs a tonne so as with the chain, is not the sort of device you would use out and about but is perfect for home. Not had any issues so far. As with the chain, this is not the cheapest on the market but the level of protection is top end. As usual, great service from SBS

This is a big, heavy lock. Not really portable and not usable as a disc lock. In combination with a big chain and a ground anchor, hard to imagine all but the most determined thief having any joy making off with your pride and joy.

Biggest and strongest lock I could find, seems big enough to deter an attack. Too heavy to travel with so will leave at work. Sprayed with ACF50 so hopefully lasts many years.

a bit tricky to man handle with its weight plus the chain. Bought for its diamond rating. Don't drop it on your foot.

After a week or so of convincing myself that spending >£100 on a lock was a good idea, I am so pleased I did. One of the main purposes of a lock is to deter criminals and this does that in spades! It is heavy, but is this really a bad thing?

Pair with the Oxford Beast 2wmm chain

Excellent heavy ,large lock gives confidence it's going to give thieves a hard time