The Microlock is a special fastening system with which the Citystar helmet is equipped. It offers secure and easy fastening, while also allowing quick release with a simple motion.

The Microlock system uses a screw-lock mechanism, which allows for the safe and reliable tightening of the helmet around the rider's head. The locking buckle of the fastening is designed to be easy to open and close, even with gloves.

The Microlock technology also offers adjustable closure, which allows the rider to adjust the fastening to their preferences. This allows for achieving the ideal comfort and fit of the helmet, without causing pressure or discomfort.