Australia Site.jpg
The Official Australian Website

Nutcase Helmets Australia

Helmet Fit Guide

Determining Your Helmet Size

The proper helmet fit is one of the most important factors for safety and comfort.  A snug, aligned fit will achieve a safe and secure ride. Below are 3 simple steps to determine the proper helmet size.

Step 1


Nutcase Helmets How To Measure Your Head For The Perfect Fit

Measure the circumference of your head with a tape measure – roughly 2.5cm above your eyebrows.

Take several measurements to make sure you have the largest size.

If you do not have a tape measure, use string or a phone charger cable and measure it against a ruler.

Step 2

Wear your Helmet

Nutcase Helmets Wear Your Helmet For The Perfect Fit

Once you have determined your helmet size, try it on. The helmet should be worn level on the head, and hot slide or move freely when you roll your head form side to side.

If this is the case, you have a helmet that is too large. Extra padding may help provide a better, more snug fit.

Step 3


Nutcase Helmets Australia Wear Your Helmet Correctly

Be sure the front of the helmet lays just above your eyebrows and that the back of the helmet does not touch the nape of the neck.

The chin strap should fit snug to where you can only insert 2 fingers. If thee skin on your forehead moves slightly, you have a good fit.


Baby Nutty

Check out Baby Nutty fit guide.

Approx Helmet Weight- 336g.

Baby Nutty Size Chart Nutcase Helmets Australia

Shop baby Nutty

Little Nutty

Check out Little Nutty fit guide for toddlers, children and youths.

Approx Helmet Weights: Toddler- 420g, Youth- 500g.

Little Nutty 2020 Size Chart Nutcase Helmets

Shop Little Nutty

Street Fit Video

Street Helmets

Check out Adult Street helmet fit guide.

Approx Helmet Weights: S- 500g, M- 515g, L-600g.

Street Size Chart Nutcase Helmets Adults Australia

Shop Street Helmets



Vio Commuter Styles

Approx Helmet Weight

Small/ Medium 



Large/Extra Large



Shop Vio Commute Helmets


Vio Adventure Styles

Approx Helmet Weight

Small/ Medium 



Large/Extra Large



Shop Vio Adventure Helmets