Your lock is the key to your peace of mind, so you never want to leave home without it. The Otto OTTOLOCK Pro Mount is the easy way to carry your OTTOLOCK. It has two strong silicone straps, a channel to secure the lock hold even on the roughest roads, and two seat mounts that accommodate aero and round tubes. Its compact design uses minimal space on your seat tube, so you have plenty of leftover space to attach lights and saddle bags.