The Bike-It Mammoth Renegade Disc Lock is a premium security option which offers sold secure Motorcycle Gold standards.Premium security motorcycle disc lockTested to Sold Secure Motorcycle Gold13mm hardened Cr-Mo shackleHardened steel body with a sliding barrel coverCan be used with security chainThe Bike-It Mammoth Renegade Disc Lock has been made using a 13mm hardened Cr-Mo shackle with a hardened Steel body and a sliding barrel cover. This lock can also be used with a security chain for further protection.The Locks have been independently tested by Sold Secure, the world-class certification house, achieving a high security rating of Sold Secure Motorcycle Gold. It is worth noting that many motorcycle insurers will reduce your insurance premium if a Sold Secure rated lock is used to secure your vehicle.