AnbteHeavy Duty Ground Anchor, Hardened Steel Flip Up and Down Wall Anchor with 4 Locking Points, Foldable, Motorbike Locks High Security for Motorcycles Bike Bicycle Scooters, Black

Nice and secure, sturdy, easy to fit. Used a 16mm drill bit + SDS hammer drill to make holes in concrete.

This is an excellent ground anchor, I use it to secure one of my mountain bikes in the Garage. It seems to be made as well as a different one I already have, the only drawback with it (and why I have deducted a star) is that it doesn’t have a “Sold Secure” rating so can not be used with some insurance companies if you need to make a claim

Goods sturdy bracketFir for purposr

Well made great quality

Good solid unit

All the mounting hardware is there to attach this to a brick wall or a concrete wall, and it's a very very solid chunk of metal.

EXACTLY what I needed to secure my bike. It feels solid and heavy right out of the box, which is always a great sign (only time will tell though); it’s straightforward to install with the included bolts, but you’ll most probably will need to have your own stone drill bit if you’re mounting it on something like concrete or brick (the husband takes care of that though for me!). I really like the extra thought that went into the design, like the little caps that cover the screws to make it tamper-proof but that being said, I've added some epoxy to the bolt holes and other parts of the fixture to make it even harder to remove. A great choice if you want to keep your bikes safe.

An enclosed copy of the instructions would have been appreciated. As per the graphic on the product information page, I used the base plate to mark the hole positions then drilled four holes into the ground with a 16mm masonry drill bit (the 10 only applies to the bolt inside the expansion mechanism). After that I tapped the four expansion screws in, unscrewed the black bolts with the larger (6mm) Allen key, put the base plate in position then screwed in the black bolts. For whatever reason one of them had no purchase, but the others were nice and tight and overall it still feels very secure. It was then just a matter of tapping in the anti-tamper ball bearings, securing the cover plate using the smaller (5mm) Allen key on the smaller screws, and covering the screw heads. There are always weak points in every bike security system, but this anchor has eliminated an obvious one.