Sold secure silver rated donrsquot let opportunists steal your bike the oxford alarm d max alarmed d lock lets everybody know when your bike is being tampered with if the alarm isnrsquot enough to deter a thief then its strength will this oxford bike lock is sold secure silver rated the second highest security rating a lock can receive included in the duo pack is a tough hardened steel 14mm shackle d lock and a cable lock for securing wheels to your frame key features rated sold secu