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HJC AR10 III Adult Auto Helmets (BRAND NEW)
$359.99 $599.99
You save $240.00 (40%) $240.00
HJC AR10 III Adult Auto Helmets-SI12BKXS
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HJC AR10 III Adult Auto Helmets (BRAND NEW)

HJC Motorsports is proud to unveil their newly redesigned super-lite SI-12 Helmet, now called the Si-12R. The new Si-12R is still one of the lightest helmets in the market weighing in at approximately 1500g (3.2 lbs). The Si-12R comes with the HJC's "ACS" Advanced Channeling Ventilation System, which allows air flow through the durable, lightweight titanium top front vent, and flushes the heat and humidity up and out the rear exhaust, to keep your head cooler during the entire race.

Even with the ACS system a driver will still sweat on a hot day, which is why HJC redesigned the new Si-12R with a removable and washable fire retardant and moisture wicking interior. In addition, the newly designed interior will now give the option of using ear cups (sold separately) to help reduce the outside noise decibel levels and adapt for radios.

Other advantages of the new Si-12R include; pre-drilled holes for head and neck restraints, polycarbonate injection molded shield with tear off posts and a deluxe helmet bag to make sure your helmet stays in great condition. The Si-12R is Snell SA2010 approved. Its available in sizes XS-XXL, colors available are white or rubbertone.

  • Advanced Super Lite Composite Weave Shell: Super lightweight. Superior fit and comfort using advanced CAD technology
  • "ACS" Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out
  • Removable and washable fire resistant Comfort-Carbon Interior: Moisture-wicking and comfortable
  • Ear cups (sold separately) to help reduce the outside noise decibel levels and adapt for radios
  • Polycarbonate Anti-fog Shield: Optically-superior 3D design provides 95% UV protection and anti-scratch coating
  • Optional R.S.T. Shields: Available in blue or silver
  • HANS Device Compatible: Pre-drilled for posts
  • Durable, Lightweight Titanium Top Front Vent
  • Available in White or Rubbertone Black
  • FREE deluxe hard shell helmet storage case included
  • Snell SA2010 Rated
  • Colors: White, Rubbertone
  • Sizes: X-Small, Small, Medium, Large, X-Large, 2X-Large
  • SKU: SI12WXS-HC1, SI12WS-HC1, SI12WM-HC1, SI12WL-HC1, SI12WXL-HC1, SI12WXXL-HC1, SI12BKXS-HC1, SI12BKS-HC1, SI12BKM-HC1, SI12BKL-HC1, SI12BKXL-HC1, SI12BKXXL-HC1
Product Image
Color
Size
SKU
Availability
Price
White
White
X-Small
SI12WXS-HC1
Out of Stock
$359.99$599.99
White
White
Small
SI12WS-HC1
Out of Stock
$359.99$599.99
White
White
Medium
SI12WM-HC1
Out of Stock
$359.99$599.99
White
White
Large
SI12WL-HC1
Out of Stock
$359.99$599.99
White
White
X-Large
SI12WXL-HC1
Out of Stock
$359.99$599.99
White
White
2X-Large
SI12WXXL-HC1
Out of Stock
$359.99$599.99
Rubbertone
Rubbertone
X-Small
SI12BKXS-HC1
Out of Stock
$359.99$599.99
Rubbertone
Rubbertone
Small
SI12BKS-HC1
In Stock
$359.99$599.99
Rubbertone
Rubbertone
Medium
SI12BKM-HC1
In Stock
$359.99$599.99
Rubbertone
Rubbertone
Large
SI12BKL-HC1
In Stock
$359.99$599.99
Rubbertone
Rubbertone
X-Large
SI12BKXL-HC1
Out of Stock
$359.99$599.99
Rubbertone
Rubbertone
2X-Large
SI12BKXXL-HC1
Out of Stock
$359.99$599.99

New - Brand new item in original packaging (original manufacturer's warranty may apply).

Used Like New - Brand new and in perfect working condition. Original packaging may be missing or slightly damaged.

Lightly 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.

Used - Good - Item may show slight to moderate use but remains in good condition and functions properly. Item may arrive with damaged packaging or be repackaged.

Used - Acceptable - Item is fairly worn but continues to function properly. Item may have identifying markings on it or show other signs of previous use. Item may arrive with damaged packaging or be repackaged.

Shoei Helmets Mens Size Chart


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 58 - 6 34 20 78 - 21 14
SM 55 - 56 6 78 - 7 21 58 - 22
MD 57 - 58 7 18 - 7 14 22 12 - 22 78
LG 59 - 60 7 38 - 7 12 23 14 - 23 58
XL 61 - 62 7 58 - 7 34 24 - 24 38
2XL 63 - 64 7 78 - 8 24 34 - 25 18
3XL 65 - 66 8 18 - 8 14 25 58 - 26
4XL 67 – 68 8 38 - 8 12 26 38 - 26 3/4
5XL 69 – 70 8 34 - 8 34 27 14 - 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 78 - 7 21 58 - 22
M 57 – 58 7 18 - 7 1/4 22 12 - 22 7/8
L 58 – 59 7 14 - 7 38 22 78 - 23 14
XL 60 – 61 7 12 - 7 58 23 58 - 24
2XL 62 – 63 7 34 - 7 78 2438 - 24 3/4
3XL 64 – 65 8 - 8 1/8 25 14 - 25 58
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 - 718 22 - 2212
M 58 – 59 7 14 - 73/8 22 78 - 231/4
L 60 – 61 7 12 - 7 58 2358 - 24
XL 62 – 63 734 - 2478 2338 - 243/4
2XL 63 – 64 8 - 818 2514 - 255/8
3XL 65 – 66 81/8 - 81/4 2558 - 26
4XL 67 – 68 83/8 - 81/2 2638 - 263/4
5XL 69 – 70 83/4 - 83/4 2714 - 275/8

Shoei Helmets Mens Size Chart


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 – 52 638 - 612 20 - 2012
YOUTH L 53 – 54 658 - 63/4 2078 - 211/4
YOUTH S/M 49 – 50 618 - 614 1914 - 1934
YOUTH L/XL 63/8 - 61/2 638 - 612 20 - 2012

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