Helmet Size Guides

Getting the right sized helmet is crucial!

Don't gamble with your safety.

Measure around your head

If you haven't got a flexible measuring tape use a piece of string or shoelace! You want to make sure this measurement is as accurate as possible.

100% Status

Adult Size: Inches, Centimeters
XS: 20 7/8 – 21 1/4in, 53 – 54cm
SM: 21 5/8 – 22in, 55 – 56cm
MD: 22 1/2 – 22 7/8in, 57 – 58cm
LG: 23 1/4 – 23 5/8in, 59 – 60cm
XL: 24 – 24 3/8in, 61 – 62cm
XXL: 24 3/4 – 25 1/4in, 63 – 64cm


Youth Size: Inches, Centimeters
SM: 18 1/2 – 18 7/8in, 47 – 48cm
MD: 19 1/4 – 19 5/8in, 49 – 50cm
LG: 20 1/8 – 20 1/2in, 51 – 52cm

Bell Sanction

SIZE: CM, IN
XS: 48-51cm, 18 7/8" – 20 1/8"
S: 52-54cm, 20 1/2" – 21 1/4"
M: 55-57cm, 21 5/8" – 22 1/2"
L: 58-60cm, 23 1/4" – 24 5/8"

Bell Sanction V2

SIZE: CM, IN
XXS: 48-51cm, 19" – 20 1/8"
XS/S: 51-55cm, 20 1/8" – 21 5/8"
M: 55-57cm, 21 5/8" – 22 1/2"
L: 57-59cm, 22 1/2" – 23 1/4"
XL: 59-61cm, 23 1/4" – 24"

Kenny Downhill

XXS: 51-52cm

XS: 53-54cm

S: 55-56cm

M: 57-58cm

L: 59-60cm

XL: 61-62cm

XXL: 63-64cm

TLD

Troy Lee Designs

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Shadow Classic Helmet / XS / Gloss White
Shadow Conspiracy Classic Helmet Gloss White
From

$94.99 AUD
S-One Lifer Helmet / Matte Maroon / XL Diagram showing the features of an S-One Lifer Helmet / Matte Maroon, including EPS Fusion Foam, sweat-absorbing sizing liners, and a size guide. The S-One Lifer Helmet / Matte Maroon is multi-impact certified and meets CPSC, ASTM, and EN 1078 standards for impact protection.
S-One Lifer Helmet / Matte Maroon
From

$89.99 AUD
Sold out
Protec JR Classic Fit Certified Helmet / Matte Lime / Youth S
Protec JR Classic Fit Certified Helmet / Matte Lime
From

$109.99 AUD
Save $10.00
Protec Certified Full Cut Helmet / Matte White / XL The Protec Fullcut Certified Helmet, available in matte white, boasts multiple certifications and features ventilation holes along with an adjustable chin strap for a secure fit.
Protec Fullcut Certifed Helmet
From

$119.99 AUD

$129.99 AUD
Sold out
Fox Rampage Pro Carbon MIPS Helmet / Matte Carbon / M
brand undefined Fox Rampage Pro Carbon MIPS Helmet

$499.99 AUD

 From

$749.99 AUD
Save $10.00
S-One Helmet Retro Lifer White Gloss/Black Stripe (AJ Nelson) with a black vertical stripe down the center, labeled with "S1" on the side. This certified helmet features ventilation holes and a chin strap with padding around the ears and neck. S-One Helmet Retro Lifer White Gloss/Black Stripe (AJ Nelson) with a black stripe down the center and two ventilation holes, featuring cushioned interior padding and a black adjustable strap. This high-impact helmet ensures maximum safety for all your activities.
S-One Helmet Retro Lifer White Gloss/Black Stripe (AJ Nelson)

$129.99 AUD

 From

$139.99 AUD
Save $0.18
S-One Lifer Premium Helmet Bag with "STONE Trusted by the Pros" written in white text on the front, featuring a cozy fleece inner liner for added warmth.
S-One Lifer Premium Helmet Bag

$17.99 AUD

 From

$18.17 AUD
A Bell Sanction 2 DLX MIPS Ravine Matte Green/Orange full-face helmet with a green, black, and orange camouflage pattern, featuring a visor and chin guard, also equipped with MIPS technology for added protection. A Bell Sanction 2 DLX MIPS Ravine Matte Green/Orange.
brand undefined Bell Sanction 2 DLX MIPS Ravine Matte Green/Orange
From

$299.99 AUD
Kenny Racing Helmet Red: A red and white full-face motocross helmet featuring a visor and a branded logo on the side.
Kenny Racing Helmet Red
From

$189.99 AUD
S-One Helmet Mini Lifer Leopard Print, featuring certified multiple impact protection and an adjustable chin strap. Graphic representation of a certified multiple impact S-One Helmet Mini Lifer Leopard Print features and sizing chart.
S-One Helmet Mini Lifer Leopard Print
From

$109.99 AUD
A TLD D4 AS Composite Helmet W/MIPS Ever Tarmac with a red and white design featuring the Mips C2 protection system. A TLD D4 AS Composite Helmet W/MIPS Ever Tarmac with a red and white design and a Mips C2 protection system.
TLD D4 AS Composite Helmet W/MIPS Ever Tarmac
From

$784.99 AUD
A S-One Lifer Helmet in black and purple on a white background. A certified S-One Helmet Lifer Black Matte/Purple Straps provides protection on a white background.
S-One Helmet Lifer Black Matte/Purple Straps
From

$89.99 AUD
A Maroon S-One Lifer Helmet with the word slone on it, designed for head protection and multiple impact resistance. A Maroon S-One Lifer Helmet with the word s1 on it, designed for head protection.
S-One Lifer Helmet / Maroon
From

$89.99 AUD
Sold out
Fox Rampage AS Helmet Teal with MIPS impact protection, isolated on a white background.
brand undefined Fox Rampage AS Helmet Teal
From

$289.99 AUD
Sold out
TLD D3 AS Fiberlite Helmet / Spiderstripe Grey / XL
TLD D3 AS Fiberlite Helmet Spiderstripe Grey / Red

$389.99 AUD

 From

$519.95 AUD
A Bell Sanction (1) Visor Bolts set with two bolts, two washers, and a three-pronged piece displayed on a white background.
brand undefined Bell Sanction (1) Visor Bolts
From

$14.99 AUD
The S-One Helmet Lifer in Black Matte with Green Straps boasts a sleek design featuring ventilation holes, an adjustable chin strap, and is enhanced with EPS Fusion Foam for multiple impact protection, ensuring both safety and style. The S-One Helmet Lifer in Black Matte with Green Straps features ventilation holes and the "S1" logo on the side. This helmet provides certified high impact protection with its multiple impact protection design, ensuring safety.
S-One Helmet Lifer / Black Matte/Green Straps
From

$89.99 AUD
The S-One Helmet Lifer in Yellow Matte comes with black chin straps and circular ventilation holes. Its EPS Fusion Foam offers certified multiple impact protection, combining style with safety. The S-One Helmet Lifer in Yellow Matte includes adjustable black chin straps, ventilation holes, and EPS Fusion Foam for protection against multiple impacts.
S-One Helmet Lifer / Yellow Matte
From

$89.99 AUD
A side view of the Bell Sanction 2 Matte Turquoise helmet, featuring angular vents, a visor, and removable cheek pads, ensures excellent airflow. A matte turquoise Bell Sanction 2 off-road motorcycle helmet with a visor and mouth guard, featuring black interior padding and removable cheek pads for added comfort.
brand undefined Bell Sanction 2 Matte Turquoise
From

$199.99 AUD
A black and gray Oneal Transition Helmet with an aerodynamic design, featuring rotational impact absorption technology and the brand name "Oneal" visible on the side.
Oneal Transition Helmet
From

$299.99 AUD
Introducing the Oneal Transition Helmet—a lightweight black and gold full-face Enduro mountain bike helmet that includes a visor, showcases the O'Neal logo prominently, and features a magnetic buckle for enhanced convenience.
Oneal Transition Helmet
From

$299.99 AUD
The Oneal Transition Helmet is a black, lightweight full-face helmet featuring a visor, chin guard, and ventilation openings for maximum airflow. Top view of a black Oneal Transition Helmet with prominent white O'Neal branding on the top, featuring a lightweight full-face design for maximum airflow.
Oneal Transition Helmet
From

$299.99 AUD
A full-face helmet designed for off-road or motocross use, the Bell Sanction Matte Black/White Presence Helmet features a striking matte black and white design with the "Bell Sanction" logo on the side, making it an ideal choice as a BMX race helmet. A matte black and white Bell Sanction Presence full-face BMX race helmet with a visor and ventilation slots.
brand undefined Bell Sanction Matte Black/White Presence Helmet
From

$169.99 AUD
Save $10.00
A S-One Helmet Mini Lifer Silver Gloss Glitter with a black interior padding, featuring the logo "S1". It incorporates EPS Fusion Foam for multi-impact protection, multiple ventilation holes, and an adjustable chin strap with a red buckle. The S-One Helmet Mini Lifer Silver Gloss Glitter, featuring ventilation holes and a black adjustable strap with red clasps, is designed for head protection and boasts EPS Fusion Foam for enhanced safety.
S-One Helmet Mini Lifer Silver Gloss Glitter

$109.99 AUD

 From

$119.99 AUD