Bike Helmet Size Guide

Step 1: Measure

Place a tape measure slightly above the ear and bring it across the mid forehead completely circling the head about 1 inch above the eyebrows.

Take several measurements to ensure you have the largest size. If a measurement falls inbetween a size, choose the larger size. The helmets come with a range of padding sizes to ensure a snug fit.

Step 2: Purchase, and Try It On

Once you have determined your helmet size, try it on and adjust the straps so it sits correctly. The helmet should be worn level on the head and not slide or move freely when you roll your head side to side. If this happens your helmet is too large. Extra padding (included) should help provide a snug fit.

Do the Push Test. If someone places a palm to your forehead and can push the helmet backwards off your head it is to loose or too large.

Step 3: Proper Fit and Wear

The front of the helmet must sit just above your eyebrows and the back of the helmet should not touch the nape of your neck.

The chin strap should fit snugly but not too tight to cause discomfort. Securely fasten the chin strap and try to roll the helmet off your head. If the skin on your forehead moves slightly, you have a good fit.

Nutcase Helmets Size Charts

Safety information

Engaging in cycling, skating, snow sports or similar without a helmet is a major cause of brain injury in Australia. The Westmead Childrens Hospital states that the most common causes of brain injury in Australia are:

A brain injury can mean anything from a skull fracture to bruising of the brain, trauma, paralysis, coma or death. Helmet wearing is the law. Be firm in your own family and among friends about wearing helmets and enjoying outdoor sports safely. Make it fun to wear a helmet.

Children should not ride in bike seats or trailers until they can support themselves and the weight of a helmet. Teach your children about bike, board, water and helmet safety as soon as possible.

Why it's important for your helmet to fit

Proper helmet fit is an important factor for both safety and comfort. Helmets which are too big, slip backwards or have ill-adjusted straps can do more harm than good. Helmets too small or tight are plain uncomfortable. In Australia, bicycle helmets are the law. In Victoria laws have recently been updated to include helmet-use for skating and foot scooters. Snow and water activities are generally adventure-packed and increased use of helmets for these activities is also becoming common to prevent serious brain injury.

Don't hamper or compromise the fit and function of your helmet by forgetting to do up straps, or by wearing extra items underneath (beanies, caps, hats). Responsibility for the risks associated with your personal style are your own.