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Bike Helmets

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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
FOX Dropframe Pro MTB Helmet Black/White 2024
37% Off Full Price

FOX

FOX Dropframe Pro MTB Helmet Black/White 2024

Regular price $249.00 Full price
Sale price $249.00
Club price
Regular price $399.99 Full price
Size
Translation missing: en.products.product.variant_options
Bell Local Nitro Circus Helmet Navy/Silver
44% Off Full Price

Bell

Bell Local Nitro Circus Helmet Navy/Silver

Regular price $55.00 Full price
Sale price $55.00
Club price
Regular price $99.99 Full price
Size
Translation missing: en.products.product.variant_options
MET Manta MIPS Helmet White
MIPS Pre-OrderPre-Order

Met

MET Manta MIPS Helmet White

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

Met

MET Codatronca Triathlon Helmet White/Silver

Regular price $449.96 Full price
Sale price $449.96
Club price
Regular price $499.95 Full price
Size
Translation missing: en.products.product.variant_options

Met

Met Crossover Helmet Blue Metallic with LIGHT

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%

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
Bluegrass Super Bold Helmet (Yellow)
33% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet (Yellow)

Regular price $60.01 Full price
Sale price $60.01
Club price
Regular price $89.95 Full price
Size
Translation missing: en.products.product.variant_options
FOX Proframe Full Face MTB Helmet Matt Black 2024
26% Off Full Price

FOX

FOX Proframe Full Face MTB Helmet Matt Black 2024

Regular price $329.00 Full price
Sale price $329.00
Club price
Regular price $449.99 Full price
Size
Translation missing: en.products.product.variant_options
MET Trenta MIPS Helmet White
17% Off Full Price

Met

MET Trenta MIPS Helmet White

Regular price $329.00 Full price
Sale price $329.00
Club price
Regular price $399.95 Full price
Size
Translation missing: en.products.product.variant_options

Met

MET Echo Helmet Black/Matt

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
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
Bell Sidetrack II MIPS Kids Helmet White/Stars
50% Off Full Price

Bell

Bell Sidetrack II MIPS Kids Helmet White/Stars

Regular price $69.95 Full price
Sale price $69.95
Club price
Regular price $139.99 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
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 Tonic MIPS Helmet Blue/Black
51% Off Full Price

Lazer

Lazer Tonic MIPS Helmet Blue/Black

Regular price $68.00 Full price
Sale price $68.00
Club price
Regular price $139.99 Full price
Size
Translation missing: en.products.product.variant_options

Met

MET Crossover Helmet Titanium/Matt with LIGHT

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

Lazer

Lazer Finch Kineticore Kids Helmet Sedona Red UNI

Regular price $94.00 Full price
Sale price $94.00
Club price
Regular price $99.95 Full price
Lazer Tonic MIPS Helmet Black
64% Off Full Price

Lazer

Lazer Tonic MIPS Helmet Black

Regular price $50.00 Full price
Sale price $50.00
Club price
Regular price $139.99 Full price
Size
Translation missing: en.products.product.variant_options
DRS BMX Helmet Grey
34% Off Full Price

DRS

DRS BMX Helmet Grey

Regular price $39.00 Full price
Sale price $39.00
Club price
Regular price $59.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Dropframe Pro Helmet Black 2023
16% Off Full Price

FOX

FOX Dropframe Pro Helmet Black 2023

Regular price $249.00 Full price
Sale price $249.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options
Bluegrass Super Bold Helmet Cyan
33% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet Cyan

Regular price $60.00 Full price
Sale price $60.00
Club price
Regular price $89.95 Full price
Size
Translation missing: en.products.product.variant_options
Bell XR Spherical MIPS Road Helmet Black
50% Off Full Price

Bell

Bell XR Spherical MIPS Road Helmet Black

Regular price $189.95 Full price
Sale price $189.95
Club price
Regular price $379.95 Full price
Size
Translation missing: en.products.product.variant_options

100%

100% Altec Helmet Black

Regular price $243.00 Full price
Sale price $243.00
Club price
Regular price $269.99 Full price
Size
Translation missing: en.products.product.variant_options
Bell Z20 Mips Helmet Mat Orange/Black Ghost
50% Off Full Price

Bell

Bell Z20 Mips Helmet Mat Orange/Black Ghost

Regular price $184.95 Full price
Sale price $184.95
Club price
Regular price $369.95 Full price
Size
Translation missing: en.products.product.variant_options
MET Vinci MIPS Helmet Red
37% Off Full Price

Met

MET Vinci MIPS Helmet Red

Regular price $118.00 Full price
Sale price $118.00
Club price
Regular price $189.95 Full price
Size
Translation missing: en.products.product.variant_options

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
Lazer CityZen KinetiCore Commuter Helmet Black
35% Off Full Price

Lazer

Lazer CityZen KinetiCore Commuter Helmet Black

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

Met

MET Magnetic Led Helmet Light 10 Lumens

Regular price $65.00 Full price
Sale price $65.00
Club price
Regular price $64.95 Full price

FOX

FOX Speedframe Pro Helmet Gloss Black/Matt Black 2023

Regular price $249.00 Full price
Sale price $249.00
Club price
Regular price $269.99 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 $184.00 Full price
Sale price $184.00
Club price
Regular price $199.99 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 $184.00 Full price
Sale price $184.00
Club price
Regular price $199.99 Full price
Size
Translation missing: en.products.product.variant_options
FOX Rampage Fullface MIPS Helmet Ceshyn White/Red/Blue 2023
43% Off Full Price

FOX

FOX Rampage Fullface MIPS Helmet Ceshyn White/Red/Blue 2023

Regular price $198.00 Full price
Sale price $198.00
Club price
Regular price $349.99 Full price
Size
Translation missing: en.products.product.variant_options

DRS

DRS BMX Helmet (White)

Regular price $49.00 Full price
Sale price $49.00
Club price
Regular price $59.99 Full price
Size
Translation missing: en.products.product.variant_options
DRS BMX Helmet (White)
18% Off Full Price

DRS

DRS BMX Helmet (White)

Regular price $49.00 Full price
Sale price $49.00
Club price
Regular price $59.99 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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