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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

Your height:

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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.

Your inseam:

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Your results

For the we suggest the following size.

More comfort More speed

Height: --

Inseam: --

Adjusted Height: --

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Recommended sizes will now be highlighted on the page.

99 Bikes have a massive range of quality bike helmets for all ages, including men’s, women’s, kids bike helmets available in store and online! In New Zealand every cyclist is required to wear bike helmets by law. Beyond providing safety, your helmet should also be comfortable and suitable for the style of riding you’ll be doing. Shop the best range of road helmets, mountain bike helmets, full face helmets, BMX helmets, kids helmets, and more. You can be sure you're buying the best helmet at the best price with our Best Price Guarantee. Shop online with click & collect and delivery, and in store at your local 99 Bikes in Auckland, Christchurch & Wellington.

Helmets

Mountain Bike Helmets

Road Bike Helmets

Kids Helmets

BMX & Skate Helmets

Full Face Helmets

Recreational Helmets

Find Your Size

Step 1: Measure your height

Find Your Size

Step 2: Adjust your inseam

Find Your Size

Your results

Find Your Size

We have saved your measurements.

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