Oxford Bumper Helmet Cable Lock The Oxford Bumper motorcycle helmet cable lock is a perfect companion for any rider who wants the flexibility of leaving their helmet with their ride. The cable lock is constructed with a high tensile steel and self coiling, allowing for high portability and storage. With a simple push to lock mechanism, the lock can also be operated even when wearing large riding gloves. Perfect for securing your helmet and accessories to your ride while you're away from her. Available in a range of colours to match any riders gear, bike and personal taste! Motorcycle Helmet Lock Features: Simple push-to-lock mechanism. Perfect for securing helmets and accessories. Plastic coated to protect paintwork. 6 mm diameter. 600 mm length. 2 keys.