I was drawn to this because it looked more stout (all parts are made of steel; no plastic) than competitors. Installation requires drilling into concrete with a 5/8 in masonry bit and a hammer drill, and is available to rent for $20 at Home Depot or the like.
The instructions are rather simple. It is essential to drill straight holes into concrete that is deep enough to take the full length of the screws, roughly 3 and 1/2 inches. After drilling the holes, I took a regular hand held drill with a masonry bit that would fit it, about $10, and smoothed out the holes so that the expanding anchors would fit through the holes in the concrete without having to force them with a hammer. This job requires eye protection as dust is going to fly!

I love this anchor and feel as though my bike is secure as can be in my garage. I have a Kryptonite chain and a disk lock on the bike as well. I highly recommend the Rota Force Anchor, and was very pleased with the US support given when I had a question about install. I really don't think you can go wrong here.

Having this gives me lots of sleep knowing I have great protection. I have a expensive lock and chain and this is a no brainer of and addiction. A must.... thanks Revzilla.