Oxford LK397 Brute Force Ground Anchor. Motorcycle Motorbike Bicycle Ebike Security/Wall Anchor, Black

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Excellent quality, as always from Oxford. Good price. The 16mm drill bit and hole required was a bit challenging even with a SDS drill, but securely fixed. Nice and sturdy item with a solid connection to the concrete.

Excellent. Used as a bike anchor on the wall.

My first attempt at installing this went quite wrong! Tthese are some tips that hopefully help others, as it does seem a good product for a reasonable price. There are a number of videos of people installing this product which also helps get it right! THIS ANCHOR WILL NOT GRIP TARMAC - it needs to be either a wall or concrete floor. To make the holes, use a SDS hammer drill - start with a 8mm masonry bit to make the pilot holes and then a 16mm bit to make the final ones - you need to go 7mm deep - give your drill a bit of a whirl around to make sure youve got the 16mm diameter - I stayed to that depth and it was fine. The kit comes with a handy little metal guide that will give you the correct distance between the holes, so you can make one hole first then use the guide to get the centre right for the next one. Once the holes are made insert the raw plugs WITH THE BOLTS STILL INSIDE, push them down with your fingers as far as they will go - you will probably find it will either go halfway down or maybe 3/4. Then you can unscrew the bolts and remove them. GENTLY use a hammer to tap the raw plugs so they are flush with the wall/ground - you shouldn't need to use much effort. When installing the anchor use your fingers first on both of the bolts then tighten using the provided allan key a little bit each side - the instructions say you should use a torque wrench to not apply too much pressure but if you dont have one to hand just tighten manually with the allen key - if you do this too much it can break them so if youre hearing the concerte cracking then stop - you should be able to get it pretty tight before this happens - just give the anchor a pull to test its solidly fixed. Do not hammer the bolts when they are in the plugs as you will just break the thread and you'll need a new kit. If you do mess up and need a new set of bolts/plugs etc. you can buy these off amazon just search for "Oxford Brute Force Ground Anchor Rawl Bolt Set" Finally with the little ball bearings if you are fixing to a wall make sure you put a towel or something underneath the area you're working to catch the balls if they slip out - which they did a lot for me! In the end I used a small bit of tape to keep them in place whilst I hammered them in.

Seems very sturdy and just fits an Oxford monster chain (14mm) through, being a snug fit means it's awkward to move the chain around or get any leverage adding a bit of extra security. Drilling the 16mm holes into my concrete garage floor was a bit of a faff - my cordless Makita combi managed it but used 3 fully charged batteries in the process, I would recommend an SDS if possible. No idea how well this will stand up to someone who really wants your bike, but for the price it seems like a solid extra layer of security.