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Bike Helmets

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Met

MET Crossover Helmet Titanium/Matt XL with LIGHT

Regular price $89.00 Full price
Sale price $89.00
Club price
Regular price $99.95 Full price
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
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
MET Veleno MIPS MTB Helmet Olive Iridescent/Matte
19% Off Full Price

Met

MET Veleno MIPS MTB Helmet Olive Iridescent/Matte

Regular price $168.00 Full price
Sale price $168.00
Club price
Regular price $209.95 Full price
Size
Translation missing: en.products.product.variant_options
Giro Source MIPS Helmet Matt Chalk
30% Off Full Price

Giro

Giro Source MIPS Helmet Matt Chalk

Regular price $174.00 Full price
Sale price $174.00
Club price
Regular price $249.99 Full price
Size
Translation missing: en.products.product.variant_options

FOX

Fox Speedframe AS MTB Helmet White 2024

Regular price $179.00 Full price
Sale price $179.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Speedframe MIPS Helmet Emerald 2023
MIPS

FOX

FOX Speedframe MIPS Helmet Emerald 2023

Regular price $179.00 Full price
Sale price $179.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options

Lazer

Lazer Jackal KC Helmet Matt Blue/Green

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
FOX Speedframe MIPS MTB Helmet Hunter Green 2024
MIPS

FOX

FOX Speedframe MIPS MTB Helmet Hunter Green 2024

Regular price $179.00 Full price
Sale price $179.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options

Met

MET Crossover Helmet Stone Blue/Glossy with LIGHT

Regular price $89.00 Full price
Sale price $89.00
Club price
Regular price $99.95 Full price

Lazer

Lazer Chase Kineticore Fullface Helmet Matte Black

Regular price $286.00 Full price
Sale price $286.00
Club price
Regular price $299.95 Full price
Size
Translation missing: en.products.product.variant_options

Scott

Scott Spunto Kids Helmet Soft Green

Regular price $62.00 Full price
Sale price $62.00
Club price
Regular price $69.99 Full price
Bell 4Forty Mips Helmet Mat/Gloss Dark Grey/Crimson
42% Off Full Price

Bell

Bell 4Forty Mips Helmet Mat/Gloss Dark Grey/Crimson

Regular price $115.00 Full price
Sale price $115.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options

Met

MET Echo Helmet White/Bronze

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

Lazer

Lazer Coyote Kineticore Helmet Matte Black

Regular price $139.00 Full price
Sale price $139.00
Club price
Regular price $159.95 Full price
Size
Translation missing: en.products.product.variant_options

Lazer

Lazer Coyote Kineticore Helmet Matte Cali

Regular price $139.00 Full price
Sale price $139.00
Club price
Regular price $159.95 Full price
Size
Translation missing: en.products.product.variant_options

Lazer

Lazer Coyote KC Helmet Matte Light/Blue

Regular price $139.00 Full price
Sale price $139.00
Club price
Regular price $159.95 Full price
Size
Translation missing: en.products.product.variant_options
Giro Synthe MIPS II Helmet Matte Black
20% Off Full Price

Giro

Giro Synthe MIPS II Helmet Matte Black

Regular price $285.00 Full price
Sale price $285.00
Club price
Regular price $359.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Aether MIPS Road Helmet White/Silver
19% Off Full Price

Giro

Giro Aether MIPS Road Helmet White/Silver

Regular price $400.00 Full price
Sale price $400.00
Club price
Regular price $499.99 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
FOX Mainframe MIPS Helmet White 2024
MIPS

FOX

FOX Mainframe MIPS Helmet White 2024

Regular price $125.00 Full price
Sale price $125.00
Club price
Regular price $139.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Mainframe MIPS Helmet Fluoro Red 2024
MIPS

FOX

FOX Mainframe MIPS Helmet Fluoro Red 2024

Regular price $125.00 Full price
Sale price $125.00
Club price
Regular price $139.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Speedframe MIPS MTB Helmet Cactus 2024
MIPS

FOX

FOX Speedframe MIPS MTB Helmet Cactus 2024

Regular price $179.00 Full price
Sale price $179.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options

Met

Met Rivale II Replacment Helmet Pads

Regular price $28.00 Full price
Sale price $28.00
Club price
Regular price $29.95 Full price
FOX Mainframe MIPS Helmet Fluoro Yellow 2024
MIPS

FOX

FOX Mainframe MIPS Helmet Fluoro Yellow 2024

Regular price $125.00 Full price
Sale price $125.00
Club price
Regular price $139.99 Full price
Size
Translation missing: en.products.product.variant_options
Bell Spark 2 MIPS MTB Helmet Matte Black
20% Off Full Price

Bell

Bell Spark 2 MIPS MTB Helmet Matte Black

Regular price $119.00 Full price
Sale price $119.00
Club price
Regular price $149.99 Full price
Size
Translation missing: en.products.product.variant_options
Bell Super DH Mips Helmet Matte/Gloss Black
MIPS

Bell

Bell Super DH Mips Helmet Matte/Gloss Black

Regular price $499.00 Full price
Sale price $499.00
Club price
Regular price $529.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Source MIPS Helmet Potaro Grey
30% Off Full Price

Giro

Giro Source MIPS Helmet Potaro Grey

Regular price $174.00 Full price
Sale price $174.00
Club price
Regular price $249.99 Full price
Size
Translation missing: en.products.product.variant_options

FOX

FOX Rampage Fullface Helmet Black/Black 2023

Regular price $289.00 Full price
Sale price $289.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options

Met

MET Idolo Road Helmet White Gloss

Regular price $98.00 Full price
Sale price $98.00
Club price
Regular price $109.95 Full price
Size
Translation missing: en.products.product.variant_options

Met

Met Universal Replacement Helmet Pads

Regular price $23.00 Full price
Sale price $23.00
Club price
Regular price $24.95 Full price
Lazer Jackal MIPS Helmet Black
40% Off Full Price

Lazer

Lazer Jackal MIPS Helmet Black

Regular price $178.00 Full price
Sale price $178.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options
100% Altis Helmet Grey
30% Off Full Price

100%

100% Altis Helmet Grey

Regular price $132.00 Full price
Sale price $132.00
Club price
Regular price $189.99 Full price
Size
Translation missing: en.products.product.variant_options
100% Status Youth Fullface Helmet Caltec/Grey
30% Off Full Price

100%

100% Status Youth Fullface Helmet Caltec/Grey

Regular price $202.00 Full price
Sale price $202.00
Club price
Regular price $289.99 Full price
Size
Translation missing: en.products.product.variant_options
Bell Sixer MIPS Fasthouse MTB Helmet Black/Gold
41% Off Full Price

Bell

Bell Sixer MIPS Fasthouse MTB Helmet Black/Gold

Regular price $176.00 Full price
Sale price $176.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options

Seven 7iDP

Seven iDP Project23 ABS Full Face Helmet Black

Regular price $249.00 Full price
Sale price $249.00
Club price
Regular price $279.95 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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