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Lazer Tonic Kineticore Helmet White
18% Off Full Price

Lazer

Lazer Tonic Kineticore Helmet White

Regular price $98.00 Full price
Sale price $98.00
Club price
Regular price $119.95 Full price
Size
Translation missing: en.products.product.variant_options
Bell Local Nitro Circus Helmet Navy/Silver
32% Off Full Price

Bell

Bell Local Nitro Circus Helmet Navy/Silver

Regular price $67.00 Full price
Sale price $67.00
Club price
Regular price $99.99 Full price
Size
Translation missing: en.products.product.variant_options

Bluegrass

Bluegrass Superbold BMX Helmet Grey Large

Regular price $79.00 Full price
Sale price $79.00
Club price
Regular price $89.95 Full price
FOX Mainframe TRVRS MIPS Helmet Dark Maroon 2023
33% Off Full Price

FOX

FOX Mainframe TRVRS MIPS Helmet Dark Maroon 2023

Regular price $100.00 Full price
Sale price $100.00
Club price
Regular price $149.99 Full price
Size
Translation missing: en.products.product.variant_options
MET Manta MIPS Helmet Black
MIPS

Met

MET Manta MIPS Helmet Black

Regular price $380.00 Full price
Sale price $380.00
Club price
Regular price $399.95 Full price
Size
Translation missing: en.products.product.variant_options
Lazer CityZen KinetiCore Commuter Helmet White
35% Off Full Price

Lazer

Lazer CityZen KinetiCore Commuter Helmet White

Regular price $58.00 Full price
Sale price $58.00
Club price
Regular price $89.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Crossframe Pro MIPS Helmet Matt Black 2025
MIPS

FOX

FOX Crossframe Pro MIPS Helmet Matt Black 2025

Regular price $286.00 Full price
Sale price $286.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options
Bluegrass Rogue MIPS Helmet Titanium Tie-Dye
MIPS

Bluegrass

Bluegrass Rogue MIPS Helmet Titanium Tie-Dye

Regular price $220.00 Full price
Sale price $220.00
Club price
Regular price $229.95 Full price
Size
Translation missing: en.products.product.variant_options

Lazer

Lazer Finch Kineticore Kids Helmet Fern Green UNI

Regular price $94.00 Full price
Sale price $94.00
Club price
Regular price $99.95 Full price

Met

Met Idolo Road Helmet Blue Metallic UNI

Regular price $98.00 Full price
Sale price $98.00
Club price
Regular price $109.95 Full price

Giro

Giro Scamp II Kids Helmet Blue/Green

Regular price $75.00 Full price
Sale price $75.00
Club price
Regular price $79.99 Full price
Size
Translation missing: en.products.product.variant_options
Bluegrass Super Bold Helmet (Glossy/Black)
33% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet (Glossy/Black)

Regular price $60.01 Full price
Sale price $60.01
Club price
Regular price $89.99 Full price
Size
Translation missing: en.products.product.variant_options

Met

MET Echo Helmet Olive

Regular price $89.00 Full price
Sale price $89.00
Club price
Regular price $99.95 Full price
Size
Translation missing: en.products.product.variant_options
100% Altis Gravel Helmet Camo
68% Off Full Price

100%

100% Altis Gravel Helmet Camo

Regular price $60.01 Full price
Sale price $60.01
Club price
Regular price $190.00 Full price
Size
Translation missing: en.products.product.variant_options
Lazer Tonic MIPS Helmet White
42% Off Full Price

Lazer

Lazer Tonic MIPS Helmet White

Regular price $80.00 Full price
Sale price $80.00
Club price
Regular price $139.99 Full price
Size
Translation missing: en.products.product.variant_options
MET Parachute MCR Fullface Helmet Camo/Lime Green
30% Off Full Price

Met

MET Parachute MCR Fullface Helmet Camo/Lime Green

Regular price $349.00 Full price
Sale price $349.00
Club price
Regular price $499.95 Full price
Size
Translation missing: en.products.product.variant_options

100%

100% Altec Helmet Neon Orange

Regular price $243.00 Full price
Sale price $243.00
Club price
Regular price $270.00 Full price
Size
Translation missing: en.products.product.variant_options
MET Estro MIPS Road Helmet Black / Matte Glossy
19% Off Full Price

Met

MET Estro MIPS Road Helmet Black / Matte Glossy

Regular price $169.00 Full price
Sale price $169.00
Club price
Regular price $209.95 Full price
Size
Translation missing: en.products.product.variant_options
FOX Proframe Clyzo Fullface Helmet Olive Green
22% Off Full Price

FOX

FOX Proframe Clyzo Fullface Helmet Olive Green

Regular price $349.00 Full price
Sale price $349.00
Club price
Regular price $449.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Speedframe MIPS Helmet Maroon 2023
15% Off Full Price

FOX

FOX Speedframe MIPS Helmet Maroon 2023

Regular price $169.00 Full price
Sale price $169.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options
MET Echo MIPS MTB Helmet Petrol Blue
MIPS

Met

MET Echo MIPS MTB Helmet Petrol Blue

Regular price $119.00 Full price
Sale price $119.00
Club price
Regular price $134.95 Full price
Size
Translation missing: en.products.product.variant_options
100% Altis Gravel Helmet Black
68% Off Full Price

100%

100% Altis Gravel Helmet Black

Regular price $60.01 Full price
Sale price $60.01
Club price
Regular price $190.00 Full price
Size
Translation missing: en.products.product.variant_options
FOX Crossframe Pro MIPS Helmet Olive Green 2023
66% Off Full Price

FOX

FOX Crossframe Pro MIPS Helmet Olive Green 2023

Regular price $99.00 Full price
Sale price $99.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options
Bell Sixer Mips Helmets Mat/Gloss Black
41% Off Full Price

Bell

Bell Sixer Mips Helmets Mat/Gloss Black

Regular price $175.00 Full price
Sale price $175.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options
Bluegrass Super Bold Helmet Matt Pink
38% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet Matt Pink

Regular price $55.00 Full price
Sale price $55.00
Club price
Regular price $89.99 Full price
Size
Translation missing: en.products.product.variant_options

Bluegrass

Bluegrass Superbold BMX Helmet Matte Grey

Regular price $79.00 Full price
Sale price $79.00
Club price
Regular price $89.99 Full price
Size
Translation missing: en.products.product.variant_options
Lazer Chiru MIPS Helmet Matte White
MIPS

Lazer

Lazer Chiru MIPS Helmet Matte White

Regular price $109.00 Full price
Sale price $109.00
Club price
Regular price $119.99 Full price
Size
Translation missing: en.products.product.variant_options
Bluegrass Super Bold Helmet Cyan
38% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet Cyan

Regular price $55.00 Full price
Sale price $55.00
Club price
Regular price $89.99 Full price
Size
Translation missing: en.products.product.variant_options
Bluegrass Rogue MIPS MTB Helmet Black Iridescent
34% Off Full Price

Met

Bluegrass Rogue MIPS MTB Helmet Black Iridescent

Regular price $150.00 Full price
Sale price $150.00
Club price
Regular price $229.95 Full price
Size
Translation missing: en.products.product.variant_options
Lazer Sphere MIPS Helmet White/Black
60% Off Full Price

Lazer

Lazer Sphere MIPS Helmet White/Black

Regular price $98.00 Full price
Sale price $98.00
Club price
Regular price $249.99 Full price
Size
Translation missing: en.products.product.variant_options
Lazer Sphere MIPS Helmet Black
65% Off Full Price

Lazer

Lazer Sphere MIPS Helmet Black

Regular price $85.00 Full price
Sale price $85.00
Club price
Regular price $249.99 Full price
Size
Translation missing: en.products.product.variant_options
DRS Helmet Blue
51% Off Full Price

DRS

DRS Helmet Blue

Regular price $29.00 Full price
Sale price $29.00
Club price
Regular price $59.99 Full price
Size
Translation missing: en.products.product.variant_options
MET Miles MIPS Helmet White
29% Off Full Price

Met

MET Miles MIPS Helmet White

Regular price $98.00 Full price
Sale price $98.00
Club price
Regular price $139.95 Full price
Size
Translation missing: en.products.product.variant_options

Lazer

Lazer Jackal KC Helmet Matt Turquoise

Regular price $289.00 Full price
Sale price $289.00
Club price
Regular price $329.95 Full price
Size
Translation missing: en.products.product.variant_options
Lazer Coyote Kineticore Helmet Titanium
32% Off Full Price

Lazer

Lazer Coyote Kineticore Helmet Titanium

Regular price $108.00 Full price
Sale price $108.00
Club price
Regular price $159.95 Full price
Size
Translation missing: en.products.product.variant_options
Giro Chronicle MIPS Helmet Grey Matt
27% Off Full Price

Giro

Giro Chronicle MIPS Helmet Grey Matt

Regular price $145.00 Full price
Sale price $145.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options

Find Your Size

Step 1: Measure your height

  • Take off your shoes
  • Stand with your back straight against a wall
  • Balance a book on your head to mark your height on the wall
  • Measure your height by the distance from the floor to the mark
cm

Find Your Size

Step 2: Adjust your inseam

  • Based on your height, we’ve calculated a starting point.
  • You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
  • Inseam typically falls with 5cm of the average.
cm

Find Your Size

Your results

For the we suggest the following size.

More comfort More speed
Height: --
Inseam: --
Adjusted Height: --

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

Huge Range of Bike Helmets

Beyond providing safety, your helmet should also be comfortable and suitable for the style of riding you'll be doing. At 99 Bikes, we carry a huge range of helmets from the best brands.

Popular Types of Helmets

Kids Helmets

BMX & Skate Helmets

Mountain Bike Helmets

Full Face Bike Helmets

Road Bike Helmets

Recreational Helmets

Helmets Under $200

Kids Helmets

When buying a kids bike helmet parents need to consider two factors - firstly, safety and secondly, picking a design that your kids will love to wear. 99 Bikes range includes; baby helmets, toddler bike helmets, kids helmets, and youth helmets.

Mountain Bike Helmets

Otherwise known as MTB helmets, these generally feature a front visor for extra sun protection and extra protection around the rear of the helmet for additional impact protection on those rougher trails.

BMX Helmets

Otherwise known as street bike helmets, these deliver both safety for stacks at the skatepark and style to make that landing look so much sweeter, with BMX and skate helmets being designed for safety, style and comfort.

Road Helmets

If you’re donning the lycra and hitting the bitumen, look for road cycling helmets that are lightweight and have plenty of air vents to promote airflow around your head and keep you nice and cool on longer rides. Or, for the competitive rider our range of aero bike helmets are great in helping to reduce wind drag.

Full Face Helmets

Full face bike helmets provide the ultimate protection if you’re going to be doing any form of downhill mountain biking amongst unforgiving obstacles, they offer safety towards the front of the helmet and added top and back making them more expensive than traditional mountain bike helmets.

Bike Helmets Buying Guide

By law, every cyclist is required to wear a helmet which complies with Australia's strict safety standards. As well as being safe, your helmet also needs to be comfortable and suited to the type of riding you'll be doing. Read our buying guide ot understand the main types of helmets and how to pick which model is right for you.

Frequently asked questions

Our staff are well-known for being the most friendly, knowledgeable and professional bike experts, and will help you with any questions you may have. Here are some of the most common:

What size helmet should I buy?

A well-fitting helmet should be snug but not uncomfortable. To determine what size you’ll need, simply measure the circumference of your head using a piece of string placed about 3 cm above your eyebrows. As a guide, you can start with the below for the Azur L61, one of our most popular helmets:

Always check the sizing for an individual helmet under the Details tab on our pages, or check with one of our bike experts.

What is MIPS?

Multi-directional Impact Protection System (MIPS) is designed to reduce rotational motion that occur due to certain types of impacts. By allowing the head to move inside the helmet, the amount of harmful rotational motion is reduced. You can spot a MIPS helmet by the yellow liner beneath the pads when you look inside in the helmet.

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