Often asked: How To Measure Cycling Helmet Size?


How do I know my bike helmet size?

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.

What size helmet is 58cm?


Helmet Size Cir. (in) Cir. (cm)
Small 20″-22″ 51-56cm
Medium 21.25″-23″ 54- 58cm
Large 22.5″-24″ 57-61cm
X Large 23.25″-24.75″ 59-63cm

What size is my head for a helmet?

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!

What size helmet do I need for a 23 inch head?

Size Comparison Chart

Standard Size Hat Size Inches
XS 7 22
S 7 1/8 22 3/8
M 7 1/4 – 7 3/8 22 3/4 – 23 1/4
L 7 1/2 23 5/8


What is the standard helmet size?

Helmet Size Chart for HJC, Bell & KLIM

Helmet Size Hat Size Head Circumference – Metric
M 7 1/8 – 7 1/4 57-58
L 7 3/8 – 7 1/2 59-60
XL 7 5/8 – 7 3/4 61-62
2XL 7 7/8 – 8 63-64
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How tight should a helmet fit?

The key to a helmet doing what it is designed to do is how it fits. A motorcycle helmet should fit snug without minimal play when firmly twisting the helmet from side to side, and up and down. A helmet that fits too tight may cause pressure points, feel uncomfortable, and be extremely difficult to put on or take off.

What size is a small helmet?

What size is a small helmet? 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.

What size is a medium crash helmet?

Helmet Sizing Chart

Motorcycle Helmet Sizing Chart
Adult Size CM Hat Size
Small 55-56 6 7/8 – 7
Medium 57-58 7 1/8 – 7 1/4
Large 59-60 7 3/8 – 7 1/2


How do you measure your head for a hurling helmet?

You need to measure your heads circumference and will want to wrap the measuring tape starting in the middle of your forehead and just above your eye brows, then around your head above your ears and back around your head to the middle of your forehead where you started.

How do HJC helmets fit?

Check for a proper fit. The helmet inner lining fits snugly around your head. The top pad presses firmly on your head. The cheek pads contact your cheeks. There is no space around your brow under the inner lining.

What size helmet does a 5 year old need?

Step 1: Make sure the helmet is the right size.

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Age Head Circumference (in cm)
2 years 48
3- 5 years 51
6-10 years 53
11+ years 56


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