When purchasing a motorcycle helmet, it's crucial to ensure a proper fit for your head size. To determine the correct size, you can use the circumference of your head measured in centimeters. In your case, with a head size of 56 cm, you would typically fall into the range of an extra-small (XS) or small (S) helmet size.
To be more precise, it's recommended to consult the size chart provided by the helmet manufacturer or retailer you're considering. Helmet sizing can vary slightly between brands and models, so it's essential to refer to their specific guidelines for accurate measurements.
The size chart will indicate the corresponding helmet size based on your head circumference. It may include measurements for XS, S, M, L, and so on. By matching your head circumference measurement (56 cm) to the appropriate size on the chart, you can determine the best-fitting helmet size for you.
Once you have identified the size range that matches your head circumference, it's advisable to try on different helmet models within that range to find the one that provides the most comfortable and secure fit. Remember that a well-fitting helmet should be snug but not overly tight, with no pressure points and the chin strap securely fastened.
It's worth noting that helmet sizes can also be influenced by the helmet's shape and design, so trying on different brands and models can help you find the best match for your head shape as well. Prioritize comfort, proper fit, and adherence to safety standards when selecting a motorcycle helmet.