Size guide
Video: How do I find the right helmet size?
Helmet sizes orient themselves on the head circumference in cm. The information is e.g. "48–52" for S (depending on the model).
To measure the head circumference, you put a tape or a cord Almost two fingers wide over the eyebrows Over the place of the largest scope and leads it around the head.
Since a bicycle helmet should not sit too tight and each helmet has an adjustment system, you can Helmet size of the model (S, M, L, XL ...) For a pleasant seat Up to 1 cm larger choose.