Check the listing for details. SQUIRE DEFIANT BRAKE DISC LOCK - (Sold Secure Diamond Motorcycle) High Security. Condition: New. Listed at 249.12 USD. The Ultimate Angle Grinder Resistant Brake Disc Lock. Featuring highly effective angle grinder resistant armouring material Heavy-duty weather resistant protective cover 25mm solid hardened steel body 12mm 2-piece boron hardened steel shackle High-security 6-pin dimple key cylinder 470,000 key differs Anti-drill, anti-pick and anti-bump technology 2 precision engineered 6-pin dimple keys included Reminder cable included Durable neoprene pouch included Fits most brake disc rotors The Squire Defiant on review here is one of the toughest disc locks you can buy, and promises to be resistant to all forms of attack thanks to an angle grinder-resistant construction, one-piece all-metal body and six-pin dimple key cylinder. Two keys are supplied, along with a code card if you need any more cut. A neoprene pouch is also included, along with a coiled reminder cable.