I was finding it a bit difficult to install this bracket, but i found a video on Youtube and then it was OK. The bracket does the job, although it can be hard to find a good spot to place it on a small-framed bike like mine. I ended up putting it on the side of the frame and I can sometimes feel it touching my leg while I'm pedalling. It holds the lock securely while I'm riding, though. Can be a bit fiddly to get the lock off, but at least it never falls off while I'm riding.