A bike helmet that fits you properly will feel better on every ride and, most importantly, helps ensure it can do its job if you ever need it.
This step-by-step guide explains how to choose the right helmet size and adjust it for the best fit.
| Headform Shape | Helmet Size | Fit Range (cm) |
|---|---|---|
| STANDARD | Toddler | 46–50 |
| Child | 48–52 | |
| Youth / XS | 50–55 | |
| Small | 51–57 | |
| S/M | 51–58 | |
| Medium | 54–60 | |
| M/L | 55–61 | |
| Large | 58–63 | |
| X-Large | 60–66 | |
| ASIA FIT | S/M | 51–58 |
| M/L | 55–61 |
Tip: Always wear the helmet so that your forehead is protected.
Step 1. Place the helmet level on your head, just above your eyebrows. Unlock the strap dividers.
Step 2. Hold the buckle under your chin. Slide the strap divider just beneath your earlobe. Lock it.
Step 3. Pull any slack across the back of the helmet and repeat Step 2 on the opposite side.
Step 4. Thread the chin strap through the buckle and fasten it. Tuck the strap into the keeper.
Step 5. Ensure the buckle clicks shut. Test it by pulling—it should not come apart.
Step 6. Adjust the chin strap snugly under your jaw. You should only be able to fit two fingers between your chin and the strap.
If you still can’t get the right fit, visit Wheelworx—our team will help you find the perfect helmet.
When you buy your helmet from Wheelworx, our experts will:
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