My last lock sucks. Its a cable Kryptonite. Same as one of the 2 locks that was securing my old Trek. The other was my u-lock. I only use it for short times on my beater MTB after washing and stuff when I lock it on the balcony to dry. Never after dark again, thats how I got jacked last time. I was a lucky one though and got my bike back, minus locks, lighting.