I just installed this on the front wall of my house yesterday. Installation was very easy, although I am glad I read all the Amazon reviews before I bought this product and my bike arrived, this way I knew to go and buy a 16mm drill bit well in advance! It only cost less than £3 from B&Q so not a great deal of extra spending. After you hammer the ball bearings into the bolts, there is no way this is coming off the wall or floor. Together with a good chain, this should provide excellent security for any bike!