HJC i11 Adult Street Helmets
The HJC i11 Helmet delivers a race-inspired fit paired with the aerodynamic shaping and ventilation that sport riders rely on. Its streamlined shell is engineered to reduce lift and drag at speed, while the lightweight construction and efficient airflow system keep you comfortable whether you’re pushing through long highway stretches or carving through quick weekend sprints. With every twist of the throttle, you get dependable protection supported by features like a photochromic-ready visor system and emergency quick-release cheek pads. Sport-focused, tech-ready, and built for all-out riding—the i11 is made to perform when the pace picks up.
- Advanced Polycarbonate Compound (APC) shell
- Three intake vents and five exhaust ports for maximum airflow
- Improved mouth vent enhances defogging and breathability
- Photochromic ShadeX visor compatible (sold separately)
- Moisture wicking liner is quick drying and odor resistant
- Emergency quick-release cheek pads for added safety
- SMART HJC Bluetooth ready (Bluetooth unit sold separately)
- Standards: Snell M2025D & DOT FMVSS 218 Approved
- Weight: 3.315 lbs / 1521 grams (approx, based on size medium solid color)
- Colors: Black, White, Semi-Flat Black, Nardo Gray
- Sizes: X-Small, Small, Medium, Large, X-Large, 2X-Large
- SKU: 0810-0177, 0810-0178, 0810-0179, 0810-0180
New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).
Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.
Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.
Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.
Refurbished, Last Call - Same as refurbished. Last call or closeout item.
HOW TO DETERMINE YOUR HELMET SIZE
(H) HEAD
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
| SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
|---|---|---|---|
| 2XS | 51 - 52 | 6 3/8 - 6 1/2 | 20 1/8 - 20 1/2 |
| XS | 53 - 54 | 6 5⁄8 - 6 3⁄4 | 20 7⁄8 - 21 1⁄4 |
| SM | 55 - 56 | 6 7⁄8 - 7 | 21 5⁄8 - 22 |
| MD | 57 - 58 | 7 1⁄8 - 7 1⁄4 | 22 1⁄2 - 22 7⁄8 |
| LG | 59 - 60 | 7 3⁄8 - 7 1⁄2 | 23 1⁄4 - 23 5⁄8 |
| XL | 61 - 62 | 7 5⁄8 - 7 3⁄4 | 24 - 24 3⁄8 |
| 2XL | 63 - 64 | 7 7⁄8 - 8 | 24 3⁄4 - 25 1⁄8 |
| 3XL | 65 - 66 | 8 1⁄8 - 8 1⁄4 | 25 5⁄8 - 26 |
| 4XL | 67 – 68 | 8 3⁄8 - 8 1⁄2 | 26 3⁄8 - 26 3/4 |
| 5XL | 69 – 70 | 8 3⁄4 - 8 3⁄4 | 27 1⁄4 - 27 5/8 |
| SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
|---|---|---|---|
| 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 1⁄2 - 22 7/8 |
| L | 58 – 59 | 7 1⁄4 - 7 3⁄8 | 22 7⁄8 - 23 1⁄4 |
| XL | 60 – 61 | 7 1⁄2 - 7 5⁄8 | 23 5⁄8 - 24 |
| 2XL | 62 – 63 | 7 3⁄4 - 7 7⁄8 | 243⁄8 - 24 3/4 |
| 3XL | 64 – 65 | 8 - 8 1/8 | 25 1⁄4 - 25 5⁄8 |
| SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
|---|---|---|---|
| XS | 54 – 55 | 6 3/4 - 6 7/8 | 21 1/4 - 21 5/8 |
| S | 56 – 57 | 7 - 71⁄8 | 22 - 221⁄2 |
| M | 58 – 59 | 7 1⁄4 - 73/8 | 22 7⁄8 - 231/4 |
| L | 60 – 61 | 7 1⁄2 - 7 5⁄8 | 235⁄8 - 24 |
| XL | 62 – 63 | 73⁄4 - 247⁄8 | 233⁄8 - 243/4 |
| 2XL | 63 – 64 | 8 - 81⁄8 | 251⁄4 - 255/8 |
| 3XL | 65 – 66 | 81/8 - 81/4 | 255⁄8 - 26 |
| 4XL | 67 – 68 | 83/8 - 81/2 | 263⁄8 - 263/4 |
| 5XL | 69 – 70 | 83/4 - 83/4 | 271⁄4 - 275/8 |
HOW TO DETERMINE YOUR HELMET SIZE
(H) HEAD
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
| SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
|---|---|---|---|
| YOUTH S | 49 – 50 | 61/8 - 61/4 | 191/4 - 193/4 |
| YOUTH M | 51 – 52 | 63⁄8 - 61⁄2 | 20 - 201⁄2 |
| YOUTH L | 53 – 54 | 65⁄8 - 63/4 | 207⁄8 - 211/4 |
| YOUTH S/M | 49 – 50 | 61⁄8 - 61⁄4 | 191⁄4 - 193⁄4 |
| YOUTH L/XL | 63/8 - 61/2 | 63⁄8 - 61⁄2 | 20 - 201⁄2 |
