Wunderlich - Helm-Lock Helmet Anti-Theft Protection for BMW R 1300 GSThe proven Wunderlich HELM LOCK helmet lock secure and easy helmet security handling with robust, model specific anchoring for the BMW R 1300 Function and Product Features Simple and theft proof fastening for up to two helmets Robust, stainless steel design Access to lock secured by seat lock No additional lock, etc. necessary Aluminium hanging device is permanently affixed under the seat Security cable can be stowed away when not in use to save space