Size Guide

Step 1 — measure your head

Take a soft tape measure (not a steel one). Run it around the widest part of your head: roughly 2 cm above the brow, directly above the ears, and across the most prominent point at the back.

• Pull it snug — neither loose nor pressing in.
• Measure two or three times and take the most frequent reading.
• Record it in centimetres, rounded to the nearest whole number.
• If your hair is thick or usually tied back, measure as you would ride.

Step 2 — match the general table

The table below is a general reference for adult helmet sizes. It is not a guarantee of fit — each model has its own shell shape and lining thickness, so the same size can feel different between models.

The only model in our catalogue that lists its own size table on the official sheet is JPN Galaxy: M (57–58 cm) and L (59–60 cm). For other models, ask us about size availability.

Step 3 — try it on; this is what decides

The number is only a starting point. A helmet that truly fits meets all of the following:

• Even pressure. Snug all the way round, with no single point that hurts or digs in.
• No shifting. Shake and nod your head — the scalp moves with the lining; the helmet does not turn by itself.
• It stays on. With the strap fastened, push the helmet from the back towards the front. It must not roll off.
• Cheeks supported. The cheek pads touch rather than hang.

A new helmet reasonably feels a little tight. The padding will give slightly after a few uses — but the shell shape does not change. If a spot hurts from the start, go up one size or try a different model.

For children's helmets

Measure a child's head the same way. Do not buy a size up so it "lasts longer" — a loose helmet does not work as it should and makes a child reluctant to wear it. Re-check the size every few months, as children are still growing.

Our children's line: KBR Bogo Carkids and KBR Junior Pet Motif.