Lock your favorite BERG product in seconds with the BERG Chain Lock. The lock is perfect for securely fastening your bike, balance bike or go-kart such as the Reppy, Buddy or Rally. The 70 cm long chain with 6 mm thick steel links offers reliable security and weighs only 540 grams, making it both strong and easy to carry. Simply set a personal five-digit code for the lock, so keys are no longer needed.