FAQ: If My Head Is 58cm, What Size Bike Helmet Is Recommended?

How do I know what size bike helmet I need?

To find the right size bike helmet, start by measuring your head circumference because helmet sizing is based on that. To find your head circumference, wrap a flexible tape measure around the largest portion of your head—about one inch above your eyebrows.

How do I find my helmet size?

Using a soft measuring tape, measure around the circumference of your head, across the forehead just above the eyebrows, above the ears and around the back of your head. Helmets are available in sizes from 50cm right up to 67cm!

How should a helmet fit?

The helmet should sit level on your head and low on your forehead — one or two finger-widths above your eyebrow. Side Straps: Adjust the slider on both straps to form a “V” shape under, and slightly in front of, the ears.

How should a full face helmet fit?

A correct sized full face helmet should feel snug on your head and shouldn’t move back and forth or side to side when you move your head. One way to test if a helmet is fitting you right or not is when you put the helmet on its front should be no more than an inch above your eyebrows.

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How do I know if my bike helmet is too small?

Try a helmet that’s too small first. A helmet that’s too small won’t be able to sit flush with the top of the head. A helmet too small will stop well above the ears before their head is finished rounding out. Any retention system (more on this later) typically will need to be as loose as possible.

What is the average head size?

According to Wikipedia, one study in the United States shows, the average adult head circumference to be 55cm (21 3⁄4 ) in females and 57cm (22 1⁄2 in) in males.

What size helmet do I need if my head is 22 inches?

Hat sizes are calculated by dividing head circumference in inches by the value of pi, which is known to be the ratio of the circumference of a circle to its diameter, and which is said to have a value of 3.14. For example, a head circumference of 22 inches divided by 3.14 equals 7.00-or a size 7 hat.

Is helmet size same as hat size?

Using the hat size, a helmet measuring 57 – 58 cm is a hat size 7 ⅛ – 7 ¼. 3. In general, a size small helmet measures 55 – 56 cm or 21 ⅝ – 22 in inches. In terms of hat size, a small helmet is a size 6 ⅞ – 7.

How do I know my head shape for motorcycle helmet?

When measuring your head, use a cloth tape. Start it just above your eyebrows and circle it around the thickest point in the rear of your head. Cross-reference this measurement with a helmet size chart. A helmet that is too loose will move around or will not sit down completely on your head.

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