Review on 🔒 UiiziC Bike Cable Lock, Travel Padlock 4.9 FT – Portable Mini Bicycle Lock with Anti-Theft Security – Retractable Combination Helmet Lock Cable for Baby Strollers and Suitcases – New 4-Digit, 4.9 FT (1-Pack) by Ron Turner

Has a 4-digit code that is 10 times harder to "crack" than a 3-digit code (as suggested or another small bike lock). It is very easy to set the code you want. The rotating dials feel solid and they have a nice click between each digit, so you can open the lock just by dialing your code. It is very light and easy to carry in your pocket. The cable is thin (as advertised) so obviously it's a lot easier to cut than a thicker cable. A decent regular pair of pliers (with a cutting blade) will get the job done quickly. So I definitely wouldn't use this to protect an expensive bike on the road overnight in a place where bike theft is common. However, I plan to use it to protect my bike when I'm in a shop or restaurant - basically so nobody can just run away with the bike. And of course the cable would interfere.