bike lock,bike,lock,bike accessories,bicycle chain lock,bike locks high security,bicycle lock,bicycle locks,bike chain lock,bike locks,cycle lock,locks for bicycles,cable lock,bicycle accessories,combination bike lock,bike d lock,motorbike chain lock,bike lock with key Lightweight and portable The helmet lock is small in size, light in weight and easy to carry. The innovative design of the spiral telephone coil is easy to store and carry. You can put it in a saddle bag, backpack or pocket and bicycle. The maximum length can be extended to 150cm. Safe and reliable The portable steel cable lock is designed with alloy lock core and lock head, outer PVC wrap and internal flexible steel cable. The diameter of the steel cable is about 1.9 inches. Items provide more safety protection and better protect your bicycle. Safety protection, better protect your bicycle. AdvantagesThe bicycle lock can be reset, and the 4-digit bicycle password lock can be set up to 9999 unique personal password combinations, reducing the possibility of random theft and protecting your bicycle and other valuables from being stolen. No key is needed, no need to worry about losing the key and being unable to unlock. Various uses Bicycle locks can be used for multiple purposes, including bicycles, motorcycles, garages, farms, fences, suitcases, tool boxes, trolleys, shops, glass doors and other security applications. Quality Service If you have any questions about our products, please feel free to contact us, we will serve you wholeheartedly happy shopping The lock weighs only 0.28 pounds, is lightweight and portable, and the coiled construction allows for long enough distances up to 59 inches 1. Factory code is set to 0000. 2. Turn the key to the factory code position. 3. Rotate 90 degrees clockwise while keeping the original code intact 4. Set your own password. 5. Align the logo and rotate 90 degrees counterclockwise to complete the setting.