Keyless 4-digit code security with push-lock for easy handling - No keys needed: a 4-digit personalized code provides reliable access control and simple operation with a push-lock. - Balanced for everyday use and strong protection against theft, without the hassle of key management. Weather and wear resistant construction - Built from zinc alloy with a robust shell to minimize weather-related damage. - Protects internal components for reliable performance in daily use. Secure fit and practical design - Secures motorcycles via disc brake holes larger than 7 mm. - Lightweight construction and mobility optimized for everyday carry. - Includes a reliable reminder cord to help prevent accidental loss or misuse. Advanced theft protection - High-security mechanism combined with millions of individually adjustable code combinations. - Provides tailored protection against unauthorized opening and reliable security for any bicycle model. Use scenarios - Urban commuting: lock your bike quickly during short stops at coffee shops, stores, or work, using a 4-digit code for fast access. - Daily errands and school routes: secure your bike at racks or transit hubs with minimal fuss and no keys to carry. - Travel and rentals: convenient for shared or rental bikes where a simple code-based lock simplifies access and reduces key management. Specifications and compatibility - Function: keyless 4-digit code with push-lock; not dependent on physical keys. - Compatibility: designed to secure bicycles and motorcycles via disc brake holes larger than 7 mm; suitable for a wide range of bicycle models. - Material: zinc alloy with a robust outer shell for improved weather resistance. - Performance: millions of possible code combinations for customized protection against unauthorized opening.