Most bicycle helmets feature an adjustment system in the form of a head ring which allows individual adjustment in the neck area by means of a rotary wheel, covering a wide range of head circumferences. To adjust the fit of the bicycle helmet optimally, it should sit close to the head.
In addition to head circumference, the so-called strap distribution system of the helmet should also fit your head. When wearing the helmet, the safety fastener should ideally be located directly under the chin. The strap system of a helmet fits you if:
• your ears are not covered,
• the chin strap does not cut into the skin,
• you can fit one finger between the chin strap and your chin,
• the straps do not bother you and the helmet fits comfortably.