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$839.99 USD
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The RPHA 1N Brad Binder helmet, developed with input from MotoGP athletes, is HJC’s race-bred model used in MotoGP™ and WorldSBK. FIM-certified with advanced aerodynamics, top-tier ventilation, and premium materials, it's built for elite performance on the track.
Helmet Size Convention Chart
The size chart is for reference. Always try the helmet on and follow the instructions for a proper fit.
| Size | CM | Hat Size | Inches |
|---|---|---|---|
| 3XS | 50–51 | 6 1/4 – 6 3/8 | 19 3/4 – 20 1/8 |
| 2XS | 52–53 | 6 1/2 – 6 5/8 | 20 1/2 – 20 7/8 |
| XS | 54–55 | 6 3/4 – 6 7/8 | 21 1/4 – 21 5/8 |
| S | 55–56 | 6 7/8 – 7 | 21 5/8 – 22 |
| M | 57–58 | 7 1/8 – 7 1/4 | 22 1/4 – 22 7/8 |
| L | 58–59 | 7 1/4 – 7 3/8 | 23 1/4 – 23 5/8 |
| XL | 60–61 | 7 1/2 – 7 5/8 | 23 5/8 – 24 |
| 2XL | 62–63 | 7 3/4 – 7 7/8 | 24 3/8 – 24 3/4 |
| 3XL | 64–65 | 8 – 8 1/8 | 25 1/8 – 25 1/2 |
| 4XL | 66–67 | 8 1/4 – 8 3/8 | 26 – 26 3/8 |
| 5XL | 68–69 | 8 1/2 – 8 5/8 | 26 3/4 – 27 1/8 |
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Cutoff times apply to in-stock items. Delays may occur during peak periods.