Bicycle security lock with a combination mechanism - Purpose and benefits A lightweight combination bicycle lock that provides reliable theft deterrence for outdoor activities and travel. Designed to be a practical accessory for keeping your bike secure when you are away from it. - Frame-friendly mounting Mounts on the bicycle frame without scratching the paint and without creating excess noise. A convenient attachment option for quick access during stops or breaks. - Portable and storage friendly Lightweight and compact, it stores easily in a bag, saddle, or pack without taking up much space. - Smooth, precise operation Finely finished mechanism with easy-to-insert and easy-to-remove components. Built to resist sticking and unauthorized unlocking while maintaining reliable performance. - Compatibility and versatility A universal design suitable for many bike setups and environments. Works as a spare-part style accessory for theft-prevention systems. - Use scenarios Camping and outdoor trips where you may leave the bike unattended for short periods. Travel and lodging situations when you need to secure the bike at train stations, airports, hostels, or hotels. Urban commuting and dorm or hostel living where quick, quiet locking is advantageous. - Key attributes Function: combination lock for bicycles Compatibility: universal fit for common bike frames Size and weight: lightweight and compact for easy carrying Material and finish: finely machined components with smooth operation Performance: reliable locking with resistance to accidental unlocking and jamming