Abstract: A closed loop handlebar locking device is securely coupled to a bike allowing safe and accurate steering of the bike. Device is further suitable for locking the bike when not in use. Device is configurable to lock a bike to a fixed object, such as a signpost while still attached to the stem of the bike. The device is also configurable to lock the bike when a suitable object is not available. In such a situation the device may be removed from the stem, passed around the frame and through one or both wheels. The device is attached to the stem via a stem piece that remains attached to the stem when the device is detached. Brakes, lights, computer and other accessories and components are attached to the stem piece. The bike is unsuitable for operation if the handlebar locking device is defeated by a would-be thief.

Abstract: A closed loop handlebar locking device is securely coupled to a bike and allows safe and accurate steering and operation of the bike when in use. The handlebar locking device is further suitable for securely locking the bike when the bike is not in use. Handlebar locking device is configurable to lock a bike to a fixed object, such as a signpost while still attached to the stem of the bike. The handlebar locking device is also configurable to lock the bike when a suitable object, such as a signpost is not available. In such a situation the handlebar locking device may be removed from the stem and passed around the frame and through one or both wheels. The handlebar locking device is attached to the stem via a stem piece that remains attached to the stem when the handlebar locking device is detached. Brakes, lights, computer and other accessories and components are attached to the stem piece. The bike is unsuitable for operation even if the handlebar locking device is defeated by a would-be thief.