Review from Cycling Plus

At home, in the shed or in the garage, there are often very few things which are any good for locking your bike to. Enter stage left, the stronghold from Kryptonite. Its a hard-as-nails shackle which bolts directly to the floor and it comes complete with bolts and even a masonry drillbit with which to drill the mounting holes. With all this it's a smple task to install. Simply get a good quality hammer drill and drill holes to the required depth using the template...what you are left with is s a fully weatherproof covered shackle which can be driven over in a car, yet flips up to provide a secure anchor point with a loop big enough for all but the fattest chains to fit through - and it comes with a lifetime warranty too. Aside form fastening a car to it and trying to drive away, there are very few ways to break it.

In conclusion...

Just about the best thing this side of a bank safe that you can lock your bike to.

Rating: 9/10

Review from Bikeradar

Kryptonite's beefy Stronghold ground anchor provides a permanent locking point for your bike, and can be installed indoors or outdoors. It bolts directly into cement or concrete using three 5/8in anchor bolts.

The 5/16in and 5/8in masonry bits needed to drill the bolt holes are included, along with all the other tools you'll need (except for a drill and safety specs), such as 4mm and 6mm Allen keys, and hardened security balls and cover disks to stop the bolts being unscrewed.

It's simple to fit using the included instructions - although the depth of the holes needed means the drilling can take some time - and can be screwed down tightly enough that it's impossible for thieves to get anything underneath it to lever it out of the ground.

The anchor's 6mm hardened carbon alloy steel shackle lays flat when not in use, making it safe to drive or walk over. It's wide enough to pass a chunky cable lock through.

The Stronghold used to have Sold Secure Gold status - the top rating from the independent testing organisation administered by the Master Locksmiths Association - but wasn't submitted for re-certification by Kryptonite for 2009. The design hasn't changed since it achieved the standard.

In conclusion...

Impressively solid permanent lock point for your bikes, and the inclusion of all the bits and bobs needed to fit it will save you a trip to the shops

Rating: 9/10

Review from Cycling Plus

In conclusion...

Home security is all too often neglected, we carry D-locks and cables when out, but leave bikes in the shed or garage at home and assume they are safe. They're not, 'shed theft' is booming

Review from MBUK

The Stronghold is a surface-mounted floor anchor designed to attach to a wall or concrete floor, and the lock is equally at home attached to the bed of a trailer or pick-up truck

In conclusion...

Keep your bike where it should be!

Rating: 9/10