Trelock Frame Lock

A frame lock, often called an 'O-lock' or 'ring lock,' mounts directly to your bike's rear frame. When engaged, a steel bolt slides through the rear wheel spokes, physically preventing the wheel from turning and immobilizing the bike.

This lock is designed for frames with pre-drilled mounting holes on the rear seat stays. Before purchasing, verify that your bike frame has these mounting points, as it is not compatible with frames that lack them.

Frame locks are best used as a secondary security measure for quick stops, like running into a coffee shop. For longer periods or high-theft areas, we strongly recommend pairing this with a heavy-duty chain or U-lock to secure the frame to an immovable object.

The NAZ key system is specific to this lock model. We recommend registering your key code immediately after purchase, as this will allow you to order a replacement key from Trelock if you lose the original.

The set includes the necessary mounting hardware, but you will need standard tools like an Allen key or wrench to secure the bracket to your frame. Installation is straightforward and typically takes less than ten minutes.