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HJC RPHA 11 PRO Sonic Helmet
- Advanced P.I.M. Plus (Premium Integrated Matrix Plus) Fiberglass
- Max Airflow Top Vent
- ACS Advanced Channeling Ventilation System
- MultiCoolTM Interior
- RapidfireTM Shield Replacement System
- Pin-Prepared HJ-26 Shield
- Cheek Pad Removal Emergency Kit
- Communication Speaker Pockets
- Breath Deflector & Chin Curtain
- Anti-Fog Insert Lens & Dark Smoke Shield Included
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MSRP:
$629.99 - $634.99
,
Our Price: $349.00
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 3/4 to 6 7/8 | 21 1/4 to 21 5/8 | 54 to 55 |
| 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 1/4 to 7 3/8 | 22 7/8 to 23 1/4 | 58 to 59 |
| XL | 7 1/2 to 7 5/8 | 23 5/8 to 24 | 60 to 61 |
| XXL | 7 3/4 to 7 7/8 | 24 3/8 to 24 3/4 | 62 to 63 |
Other Useful HJC Information Links:
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