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HJC i10 Sonar Helmet
- Advanced Polycarbonate Composite Shell
- ACS Advanced Channeling Ventilation System
- Anti-Fog System
- SuperCool™ Moisture-Wicking Interior
- Includes Pinlock®-Ready HJ-31 Shield
- RapidFire™ Shield Replacement System
- D-Ring Retention System
- Bluetooth Ready Compatible
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Our Price:
$189.99 - $194.99
Sizing Information
Below is a size chart provided by HJC for this product. If you need help with how to measure, or how to evaluate the fit of a helmet please have a look at this guide by HJC (the size chart included in this guide is for a “generic” HJC helmet and may differ slightly from the chart below that is specific to this product).
If you have questions about how this helmet might fit as compared to other helmets in your closet, please visit this FAQ for some advice.
| Helmet Size | Hat Size | Head Measurement (inches) | Head Measurement (cm) |
|---|---|---|---|
| XS | 6 5/8 to 6 3/4 | 20 7/8 to 21 1/4 | 53 to 54 |
| Small | 6 7/8 to 7 | 21 5/8 to 22 | 55 to 56 |
| Medium | 7 1/8 to 7 1/4 | 22 1/2 to 22 7/8 | 57 to 58 |
| Large | 7 3/8 to 7 1/2 | 23 1/4 to 23 5/8 | 59 to 60 |
| XL | 7 5/8 to 7 3/4 | 24 to 24 3/8 | 61 to 62 |
| XXL | 7 7/8 to 8 | 24 3/4 to 25 1/4 | 63 to 64 |
Other Useful HJC Information Links:
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