HJC i10 Sonar Adult Street Helmets
- Advanced Polycarbonate Composite Shell
- ACS Advanced Channeling Ventilation System
- Anti-Fog System
- SuperCool Moisture-Wicking Interior
- Includes Pinlock-Ready HJ-31 Shield
- RapidFire Shield Replacement System
- D-Ring Retention System
- Bluetooth Ready Compatible
- Standards: Snell M2020D (3XL-5XL DOT Only)
- Construction: Injection Molded Advanced
- Polycarbonate Composite Shell
- Weight: 3.80 lbs / 1725 grams (approx,
- Based on Size Medium Solid Color)
- Colors: MC-1SF, MC-2SF, MC-3HSF, MC-5SF
- Sizes: X-Small, Small, Medium, Large, X-Large, 2X-Large, 3X-Large, 4X-Large, 5X-Large
- SKU: 0810-3731, 0810-3732, 0810-3733, 0810-3735
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 |
