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| Helmet | Avenue | Atom SV | CX390 | CX935 | CX510 | CX950 V2 | CX200 DS | CX101 | CX200 MX | Mode MX | Youth CX360 | Youth Mode MX |
| Style | Open Face | Modular | Full-Face | Modular | Full-Face | Modular | Dual-Sport | MX | MX | MX | Youth Full-Face | Youth MX |
| Shield Type | Clear Single-Lens | Clear Single-Lens | Clear Single-Lens | Clear Single-Lens | Photochromic Single-Lens | Clear Single-Lens | Clear Single-Lens | NA | NA | NA | Clear Single-Lens | NA |
| Optional Single-Lens Shields | Smoke, Mirror Silver | Smoke, Mirror Silver, Mirror Blue | Smoke, Mirror Silver | Smoke, Mirror Silver, Photochromic Clear, Photochromic Revo Red Mirror, Photochromic Revo Blue Mirror | Clear, Smoke, Mirror Silver Photochromic, Photochromic Clear, Photochromic Revo Red Mirror, Photochromic Revo Blue Mirror, Photochromic Mirror Gold | Clear Single-Lens | Smoke, Mirror Silver | NA | NA | NA | NA | NA |
| Available Snow Shields | NA | Dual-Lens & Electric | Dual-Lens & Electric | Dual-Lens & Electric | NA | Dual-Lens & Electric | Dual-Lens & Electric | NA | NA | NA | Dual-Lens & Electric | NA |
| Shell Material | Polycarbonate | Polycarbonate | ABS Polymer Composite | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate | Carbon Fiber | Polycarbonate | Polycarbonate | ABS Polymer Composite | Polycarbonate |
| Drop-Down Sun Visor | Smoke | Smoke | Smoke | Smoke | Clear | Amber | Smoke | NA | NA | NA | NA | NA |
| Speaker Pockets | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No | No | No |
| Sizes | XS - 2XL | Small - 3XL | Small - 3XL | Small - 5XL | Small - 3XL | Small - 3XL | X-Small - 3XL | Small - 3XL | Small - 3XL | Small - 3XL | Small - XL | Small - XL |
| Warranty | 2 Year | 2 Year | 2 Year | 2 Year | 2 Year | 5 Year | 2 Year | 2 Year | 2 Year | 2 Year | 2 Year | 2 Year |
Castle X
Add to wishlist
CX510 Hydra Motorcycle Helmet
Fit: True to Size
Castle X CX510 Hydra Motorcycle Helmet Specifications
- Exceeds DOT FMVSS NO. 218 standard
- ECE 22.06 approved
- Shell constructed of advanced ABS polycarbonate composite injection molding
- Multi-density EPS liner
- Premium photochromic Revo mirror shield with clear drop-down
- CX510 Hydra Helmet Comes Standard With The Revo Gold Mirror Photochromic Shield
- Custom plush, removable & washable interior padding system
- Moisture-wicking interior
- Quick-adjust micro-metric chin strap buckle system
- Advanced ventilation system allows air to easily flow front to back via the air flow channels in the EPS liner
- Adjustable mouth and forehead ventilation
- Eyeglass-friendly cheek pads
- Integrated chin curtain
- Communication system compatible
- Tool-less shield changing system
- Emergency-pull cheek pad removal
Size Guide
How To Measure
This sizing chart is simply a starting point. Head shapes vary - For the best fit, helmets should be fitted to you by an authorized Castle X dealer.
How To Measure:
For the most accurate sizing, have someone else take your measurements making sure the measuring tape is snug but not tight against your head.
Start Here:
Using a soft tape measure, start by measuring the circumference around your head at the temple, just above the eyebrow line (approximately one inch above the eyebrows).
Then select the helmet size that is closest to your head from the size chart.
For the most comfortable fit:
If your head measurement falls between two helmet sizes, try the larger of the two sizes.
| Adult | X-Small | Small | Medium | Large | X-Large | 2X-Large | 3X-Large | 4X-Large | 5X-Large |
|---|---|---|---|---|---|---|---|---|---|
| Centimeters | 53-54 | 55-56 | 57-58 | 59-60 | 61-62 | 63-64 | 65-66 | 67-68 | 69-70 |
| Hat Size | 6.5-6.75 | 6.75-7 | 7-7.25 | 7.25-7.5 | 7.5-7.75 | 7.75-8 | 8-8.25 | 8.25-8.5 | 8.5-8.75 |
| Inches | 20.75-21.25 | 21.5-22 | 22.5-22.75 | 23.25-23.5 | 24-24.5 | 24.75-25.25 | 25.5-26 | 26.25-26.75 | 27.25-27.5 |
Note: For the most comfortable fit: If your head measurement falls between two helmet sizes, try the larger of the two sizes.
CX510 Replacement Shields
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| Shield | CX510 Clear | CX510 Smoke | CX510 Photochromic Clear | CX510 Mirror Silver Photochromic | CX510 Revo Red Mirror Photochromic | CX510 Revo Blue Mirror Photochromic | CX510 Revo Gold Mirror Photochromic | CX510 Clear Drop-Down Sun Visor | CX510 Smoke Drop-Down Sun Visor |
| Photochromic | No | No | Yes | Yes | Yes | Yes | Yes | NO | NO |
| Lens Type | Single Lens | Single Lens | Single Lens | Single Lens | Single Lens | Single Lens | Single Lens | Single Lens | Single Lens |
| Usage | Warm Weather | Warm Weather | Warm Weather | Warm Weather | Warm Weather | Warm Weather | Warm Weather | Drop-Down Sun Visor | Drop-Down Sun Visor |
