because larger bike locks are difficult to convey and I always have my bike in view already, this solution is sufficient. did the whole thing with a four-digit code lock padlock from ABUS in use (gibts also on Amazon). fits perfectly in the saddle bag and gives me enough security to someone off to prevent, quickly jump on my bike and run away. This solution is cost effective and above all to save space. the quality is good, I would buy again.