Bests & Worsts Reviews from Amazon

I came to this lock from another Kryptonite u-lock that had the "bic pen pickable" key systems. That lock was great and worked well for me for many years. It also had a fantastic mount that was very straightforward, though on a couple occasions the U-lock would fall out of the mount. Enough about my old lock, let's talk about this one. It's a u-lock. Very strong, as you probably already know. I've seen videos of other brands of u-lock being cut by bolt cutters, but I haven't seen a Kryptonite cut yet, so I believe them to be of higher strength than the rest. The issue for this bike is the mounting system. It's designed to be very versatile, and there's a good bit of complexity needed in order to meet that. There's nothing wrong with it except the lack of clear instructions. See my video for how to install the mount on your bike.