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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
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Step 2: Adjust your inseam

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  • 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.
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Our Range of Mountain Bike Helmets For Sale

We have an awesome range of mountain bike helmets (MTB helmets), from all the best brands, at Australia's best prices. Mountain bike helmets like other helmets made for specific genre's of cycling are designed to improve performance and meet the demands of riders needs. In mountain biking there are many styles of riding and most will only require a standard mountain bike helmet which is designed for enduro, more demanding riding styles often require specially design helmets.

Under mountain bike helmets, there are a few subcategories of helmets including; XC mountain bike helmets (trail mountain bike helmets, half-shell helmets), All-mountain bike helmets (Open face mountain bike helmets), convertible mountain bike helmets, and full face mountain bike helmets (Downhill mountain bike helmets).

Like all quality cycling helmets, MTB helmet's should be lightweight, well ventilated and the correct fit for your head size. It is important to buy a helmet that is a snug fit, as the last thing that you want is for your helmet to move around when you’re flying down a steep descent. You can determine your size by measuring the circumference of your head approximately 3 cm above your eyebrows.

All-Mountain Bike Helmets

All-mountain bike helmets are otherwise known as open face enduro mountain bike helmets are the most commonly used helmets of all mountain bike helmets. All-mountain helmets often feature a front sun visor to reduce glare on the rider's eyes and have extra inbuilt protection around the top of the neck for added safety on torturous terrains. Ideal for riders' looking more protection and a slightly heavier mountain bike helmet.

XC Mountain Bike Helmets

XC mountain bike helmets commonly referred to as half-shell or trail mountain bike helmets look extremely similar to road bike helmets. These helmets offer a rougher and flatter design usually due to added protection to the back of the helmets in case of a backward fall. Many cross country and trail riders' prefer XC mountain helmets as they are typically a lighter-weight helmet compared to other mountain bike helmets.

Full Face Mountain Bike Helmets

Full face mountain bike helmets or downhill mountain bike helmets offer added protection to the front of the face while improving overall coverage of riders' heads. Making these helmets great for downhill mountain biking amongst unforgiving obstacles.

Convertible Mountain Bike Helmets

Convertible mountain bike helmets are as the name suggest helmets that convert from half face helmets to full face helmets. MTB convertible helmets feature a removable chin bar, meaning they ideal for mountain bike riders' looking for both comfort and protection when out on the trail.

The Best Mountain Bike Helmets At Australia's Best Prices

Shop a wide range of quality mountain bike helmets in various styles to suit your riding. With the best brands like Giro, Bell, Fox, POC, Met, 661, Lazer, and many more all at great prices, you'll be sure to find an MTB helmet that fits both your budget and needs. Shop online and in store at your local 99 Bikes in Adelaide, Brisbane, Melbourne, Perth, Canberra, Sydney, Gold Coast, and the Sunshine Coast.

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