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.

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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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The TLD D4 Polyacrylite Helmet (MIPS) in Shadow Black features a polyacrylite shell, white and red graphics, a visor, and full-face coverage. Check out the Troy Lee Designs size chart for the TLD D4 Polyacrylite Helmet (MIPS) in Shadow Black. Offering sizes XS to 3XL, these full-face helmets, featuring a Polyacrylite shell and Mips® C2 brain protection, are ideal for bike and motocross enthusiasts seeking excellent safety.
TLD D4 Polyacrylite Helmet (MIPS) / Shadow Black
From

$589.99 AUD
The TLD 25.1 D4 Carbon Helmet (MIPS) in Torched Black/Purple features a vibrant flame design on a sleek carbon fiber base with a prominent visor and aerodynamic shape for enhanced protection. Explore the TLD 25.1 D4 Carbon Helmet (MIPS) in Torched Black/Purple with a size chart for various models, including Full Face Helmets, tailored to head measurements. Find your perfect fit for Downhill BMX adventures.
TLD 25.1 D4 Carbon Helmet (MIPS) / Torched Black/Purple
From

$1,139.99 AUD
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Protec Low Pro Certified Helmet in black showcasing a sleek shell design, adorned with a white graphic on the side, and equipped with an adjustable chin strap for a personalized fit. The Protec Low Pro Certified Helmet has a slim design with a black shell adorned with a white spade symbol and comes with adjustable chin straps for a personalized fit, set against a clean white background for added elegance.
Protec Low Pro Certified Helmet
From

$159.99 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
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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
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A Goodstock Certified Helmet / Tiger Camo with yellow straps, a red Globe logo on the side, and a comfortable CoolMax liner for added comfort and certified protection. Goodstock Certified Helmet / Tiger Camo with orange adjustable straps and a red and white "GLOBE" label near the buckle on a white background. Features a CoolMax liner for added comfort and high impact protection.
Goodstock Certified Helmet / Tiger Camo
From

$89.99 AUD
Bright pink S-One Helmet Mini Lifer Hot Pink Gloss with multiple ventilation holes and an adjustable black strap. The helmet features the "S1" logo on the front and EPS Fusion Foam for added protection. The S-One Helmet Mini Lifer Hot Pink Gloss is a bright pink helmet with black vent holes and an adjustable black chin strap. It features the logo "S1" on the side and incorporates EPS Fusion Foam for superior protection.
S-One Helmet Mini Lifer Hot Pink Gloss
From

$89.99 AUD
Save $10.00
The S-One Helmet Retro Lifer White Gloss/Black Checkers features a black and white checkered stripe down the middle and the number "51" on the side. This high-impact helmet includes interior padding and a black chin strap for added comfort and safety. A white S-One Helmet Retro Lifer White Gloss/Black Checkers with the black "S1" logo, multiple ventilation holes, and an adjustable black chin strap. This Australian-certified helmet offers superior protection as a high-impact multi-impact helmet.
S-One Helmet Retro Lifer White Gloss/Black Checkers

$129.99 AUD

 From

$139.99 AUD
Save $10.00
A red speckled S-One Helmet Lifer Red Glitter with a black interior, ventilation holes, and adjustable black straps. The helmet features an "S1" logo on the side and is designed to be a high-impact helmet for ultimate protection. A S-One Helmet Lifer Red Glitter with black straps and the logo "S1" on the side, designed for safety in sports activities.
S-One Helmet Lifer Red Glitter

$109.99 AUD

 From

$119.99 AUD
A TLD D4 AS Composite helmet W/MIPS Stealth Black on a white background. A TLD D4 AS Composite Helmet W/MIPS Stealth Black featuring the Mips® C2 protection system on a white background.
TLD D4 AS Composite Helmet W/MIPS Stealth Black
From

$784.99 AUD
Save $20.00
The S-One Helmet Lifer Green Camo provides head protection against multiple impacts. A S-One Helmet Lifer Green Camo on a white background.
S-One Helmet Lifer Green Camo

$89.99 AUD

 From

$109.99 AUD
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A scaled down version of S-One Mini Lifer Helmet in gloss black with shorter straps and the word sz on it. Sizing chart and features for S-One Mini Lifer Helmet / Gloss Black. Includes EPS Fusion Foam, sweat-absorbing liners, and a guide for picking the correct helmet size based on head circumference. This certified multi-impact helmet offers unparalleled protection.
S-One Mini Lifer Helmet / Gloss Black

$89.99 AUD

 From

$99.99 AUD
Sold out
A Protec Old School Certified Helmet / Gloss Pink with a retro shape and a black logo on it.
Protec Old School Certified Helmet / Gloss Pink
From

$99.99 AUD
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TLD D3 AS Fiberlite Helmet / Spiderstripe Grey / Yellow / XL
TLD D3 AS Fiberlite Helmet / Spiderstripe Grey / Yellow

$389.99 AUD

 From

$519.95 AUD
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TLD 23 D3 AS Fiberlite Helmet / Volt Blue / XL
TLD 23 D3 AS Fiberlite Helmet Volt Blue

$282.99 AUD

 From

$519.95 AUD
Shadow Classic Helmet / XS / Gloss White
Shadow Conspiracy Classic Helmet Gloss White
From

$94.99 AUD
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Protec JR Classic Fit Certified Helmet / Matte Lime / Youth S
Protec JR Classic Fit Certified Helmet / Matte Lime
From

$109.99 AUD
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Fox Rampage Pro Carbon MIPS Helmet / Matte Carbon / M
brand undefined Fox Rampage Pro Carbon MIPS Helmet

$499.99 AUD

 From

$749.99 AUD
The S-One Helmet Lifer Mint Green Matte features ventilation holes, black padding, and an adjustable chin strap. Photographed on a white background, this Australian-certified helmet delivers premium protection for every skate session. The S-One Helmet Lifer Mint Green Matte features a black interior, black chin strap, and two front ventilation holes, delivering high-impact protection and comfort for every skate session.
S-One Helmet Lifer Mint Green Matte
From

$89.99 AUD
The TLD 25.2 D4 Headliner is a black and gray geometric mesh replacement liner designed for added comfort and protection inside your D4 helmet.
TLD 25.2 D4 Headliner
From

$79.99 AUD
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The TLD 25.2 D4 Composite Helmet MIPS Lowrider Grey is a full-face helmet with a vibrant geometric design, "Troy Lee Designs" visor branding, and advanced MIPS protection for superior safety. The TLD 25.2 D4 Composite Helmet MIPS Lowrider Grey is a full-face motocross/BMX helmet with gray, orange, and teal geometric patterns and "Troy Lee Designs" branding on the visor and chin.
TLD 25.2 D4 COMPOSITE HELMET MIPS LOWRIDER GREY

$799.99 AUD

 From

$819.99 AUD
The TLD 25.2 D4 Poly Helmet MIPS Qualifer in black/yellow features bold angular stripes, the "Troy Lee Designs" logo on the visor, and advanced Mips protection for enhanced safety. The TLD 25.2 D4 POLY HELMET MIPS QUALIFER in black/yellow features angular patterns, red accents, and Troy Lee Designs branding—perfect for mountain biking with advanced Mips protection.
TLD 25.2 D4 POLY HELMET MIPS QUALIFER BLACK / YELLOW
From

$589.99 AUD
Sold out
The TSG Evolution Helmet in satin black features a hardshell construction, air vents, adjustable chin strap, Tuned Fit System, and a small side logo.
TSG Evolution Helmet / Satin Black
From

$99.99 AUD
The TSG Nipper Maxi Helmet in Satin Cabernet is a maroon youth helmet featuring lightweight construction, ventilation holes, adjustable fit chin straps, and a small "tsg" logo on the side. The TSG Nipper Maxi Helmet in Satin Cabernet is a matte burgundy youth helmet with ventilation holes, brown adjustable chin straps, and a white "tsg" logo—lightweight and perfect for young skaters seeking comfort and style.
TSG Nipper Maxi Helmet / Satin Cabernet
From

$114.99 AUD