Arai XD-4 Diamante Helmet
The Arai XD4 Explore Graphic Helmet replaces the category leading Arai XD-3 Dual Sport Helmet.
Notable improvements for the XD4 are improved ventilation with redesigned face vents and a venturi vent at the brow, adjustable cheek pads, a new visor system for improved visibility and a new locking shield for aerodynamics.
Have a functionality, fit, or otherwise product-specific question about the Arai XD-4 Diamante Helmet? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Wrap a cloth measuring tape around your head just above your eyebrows. Pull the tape comfortably snug, and read the length.
| Size | Head (in) | Head (cm) |
|---|---|---|
| 2XS | 20 - 20 1/2 | 51 - 52 |
| XS | 20 7/8 - 21 1/4 | 53 - 54 |
| SM | 21 5/8 - 22 | 55 - 56 |
| MD | 22 1/2 - 22 7/8 | 57 - 58 |
| LG | 23 1/4 - 23 5/8 | 59 - 60 |
| XL | 24 - 24 3/8 | 61 - 62 |
| 2XL | 24 3/4 - 25 1/8 | 63 - 64 |
| 3XL | 25 1/2 - 26 | 65 - 66 |
Sizing information is provided by the manufacturer and does not guarantee a perfect fit.
Click here to see the full Arai Helmets Size Chart
| Product Style | RevZilla SKU ID | Manufacturer Product # | Availability |
|---|---|---|---|
| Black/White / XS | 869341 | 817950 | Pre-Order: Expected to ship this Fall |
| Black/White / SM | 869347 | 817951 | Pre-Order: Expected to ship this Fall |
| Black/White / MD | 869343 | 817952 | Pre-Order: Expected to ship this Fall |
| Black/White / LG | 869342 | 817953 | Pre-Order: Expected to ship this Fall |
| Black/White / XL | 869354 | 817954 | Pre-Order: Expected to ship this Fall |
| Black/White / 2XL | 869355 | 817955 | Pre-Order: Expected to ship this Fall |
| Black/Blue / XS | 869349 | 817960 | Pre-Order: Expected to ship this Fall |
| Black/Blue / SM | 869356 | 817961 | Pre-Order: Expected to ship this Fall |
| Black/Blue / MD | 869357 | 817962 | Pre-Order: Expected to ship this Fall |
| Black/Blue / LG | 869344 | 817963 | Pre-Order: Expected to ship this Fall |
| Black/Blue / XL | 869350 | 817964 | Pre-Order: Expected to ship this Fall |
| Black/Blue / 2XL | 869345 | 817965 | Pre-Order: Expected to ship this Fall |
| Red/White / XS | 869337 | 817940 | Pre-Order: Expected to ship this Fall |
| Red/White / SM | 869339 | 817941 | Pre-Order: Expected to ship this Fall |
| Red/White / MD | 869335 | 817942 | Pre-Order: Expected to ship this Fall |
| Red/White / LG | 869340 | 817943 | Pre-Order: Expected to ship this Fall |
| Red/White / XL | 869338 | 817944 | Pre-Order: Expected to ship this Fall |
| Red/White / 2XL | 869336 | 817945 | Pre-Order: Expected to ship this Fall |
| Black/White/Gold / XS | 869348 | 817970 | Pre-Order: Expected to ship this Fall |
| Black/White/Gold / SM | 869346 | 817971 | Pre-Order: Expected to ship this Fall |
| Black/White/Gold / MD | 869358 | 817972 | Pre-Order: Expected to ship this Fall |
| Black/White/Gold / LG | 869351 | 817973 | Pre-Order: Expected to ship this Fall |
| Black/White/Gold / XL | 869352 | 817974 | Pre-Order: Expected to ship this Fall |
| Black/White/Gold / 2XL | 869353 | 817975 | Pre-Order: Expected to ship this Fall |