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Brand

Bell 5
Bern 12
Giro 28
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Size

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Not sure what sized bike is best?

Answer a few short questions and we'll make a recommendation on which size is best for you.

5% Off Full Price MIPS Pre-Order

Giro

Giro Agilis MIPS Helmet Matte White

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $199.99 Full price

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17% Off Full Price Pre-Order

Giro

Giro Agilis MIPS Road Helmet Matt Black

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $199.00 Full price

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Pre-Order

Giro

Giro Isode II MIPS Road Helmet Matte White UNI 54-61cm

Regular price $125.00 Full price

Sale price $125.00

Club price

Regular price $139.00 Full price

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MIPS Pre-Order

Met

MET Vinci MIPS Road Helmet Black MD 56-58cm

Regular price $245.00 Full price

Sale price $245.00

Club price

Regular price $249.95 Full price

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Giro

Giro Isode II MIPS MTB Helmet Matte Black 2026

Regular price $125.00 Full price

Sale price $125.00

Club price

Regular price $139.00 Full price

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Giro

Giro Isode MIPS II Road Helmet UNI 54-61cm Gloss Highlight Yellow

Regular price $125.00 Full price

Sale price $125.00

Club price

Regular price $139.99 Full price

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Met

Met Idolo 2 Road Helmet White Glossy XL

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $169.95 Full price

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Giro

Giro Isode MIPS II Road Helmet UNI 54-61cm Matte Sky Blue

Regular price $125.00 Full price

Sale price $125.00

Club price

Regular price $139.99 Full price

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MIPS Pre-Order

Bern

Bern Helmet Hudson MIPS Matte Hyper Green

Regular price $237.00 Full price

Sale price $237.00

Club price

Regular price $249.99 Full price

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2% Off Full Price MIPS Pre-Order

Met

Met Echo Mips MTB Helmet Midnight

Regular price $125.00 Full price

Sale price $125.00

Club price

Regular price $169.99 Full price

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Lazer

Lazer Tonic Kineticore Helmet Black

Regular price $129.00 Full price

Sale price $129.00

Club price

Regular price $139.99 Full price

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16% Off Full Price Clearance Pre-Order

Met

Met Rivale MIPS Helmet Black

Regular price $229.00 Full price

Sale price $229.00

Club price

Regular price $274.99 Full price

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/per

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Met

Met Idolo 2 Road Helmet Black Matt

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $169.95 Full price

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53% Off Full Price Clearance Pre-Order

Giro

Giro Helios Spherical MIPS Helmet Matte Black/Red

Regular price $230.00 Full price

Sale price $230.00

Club price

Regular price $499.90 Full price

Unit price

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Lazer

Lazer Strada KinetiCore Helmet White

Regular price $182.00 Full price

Sale price $182.00

Club price

Regular price $189.99 Full price

Unit price

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MIPS Pre-Order

Bern

Bern Helmet Brentwood 2.0 MIPS Matte Black w/ Visor

Regular price $189.00 Full price

Sale price $189.00

Club price

Regular price $199.99 Full price

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MIPS Pre-Order

Bern

Bern Helmet Brentwood 2.0 MIPS Matte Muted Teal w/ Visor

Regular price $189.00 Full price

Sale price $189.00

Club price

Regular price $199.99 Full price

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MIPS Pre-Order

Bern

Bern Helmet Watts 2.0 MIPS Matte Black

Regular price $170.00 Full price

Sale price $170.00

Club price

Regular price $179.99 Full price

Unit price

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Size

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Lazer

Lazer Strada KinetiCore Helmet Black

Regular price $182.00 Full price

Sale price $182.00

Club price

Regular price $189.99 Full price

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25% Off Full Price MIPS Pre-Order

Giro

Giro Agilis MIPS Helmet Matte Black Fade

Regular price $149.00 Full price

Sale price $149.00

Club price

Regular price $199.99 Full price

Unit price

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Met Idolo 2 Road Helmet White Glossy UNI

Met

Met Idolo 2 Road Helmet White Glossy UNI

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $169.95 Full price

Unit price

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Pre-Order

Met

MET Idolo Road Helmet Black

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $169.95 Full price

Unit price

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MIPS Pre-Order

Bern

Bern Helmet Macon 2.0 MIPS Matte Black

Regular price $151.00 Full price

Sale price $151.00

Club price

Regular price $159.99 Full price

Unit price

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MIPS Pre-Order

Bern

Bern Helmet Macon 2.0 MIPS Matte Navy

Regular price $151.00 Full price

Sale price $151.00

Club price

Regular price $159.99 Full price

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Bern

Bern Helmet Watts 2.0 Matte Black

Regular price $137.00 Full price

Sale price $137.00

Club price

Regular price $144.99 Full price

Unit price

/per

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Giro

Giro Isode MIPS II Helmet Matte Black/Charcoal 54-61cm

Regular price $134.00 Full price

Sale price $134.00

Club price

Regular price $149.00 Full price

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2% Off Full Price MIPS Pre-Order

Met Echo Mips MTB Helmet Titanium Metallic

Met

Met Echo Mips MTB Helmet Titanium Metallic

Regular price $125.00 Full price

Sale price $125.00

Club price

Regular price $169.99 Full price

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17% Off Full Price Pre-Order

Giro

Giro Agilis MIPS Road Helmet Matte Sky Blue

Regular price $165.00 Full price

Sale price $165.00

Club price

Regular price $199.99 Full price

Unit price

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Size

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Giro

Giro Aerohead MIPS II Road Aero Helmet Matte Black

Regular price $921.00 Full price

Sale price $921.00

Club price

Regular price $949.00 Full price

Unit price

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MIPS Pre-Order

Bern

Bern Helmet Hudson MIPS Satin White

Regular price $237.00 Full price

Sale price $237.00

Club price

Regular price $249.99 Full price

Unit price

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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

Your height:

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.

Your inseam:

Find Your Size

Your results

For the we suggest the following size.

More comfort More speed

Height: --

Inseam: --

Adjusted Height: --

We can't make a recommendation on size for the based on your details.

Finding the right sized bike for you is important to get the most enjoyment out of your new bike. Either the size for you isn't available at your store, we don’t have the required data or your height is outside the range of this bike.

If you head instore our team will provide a free professional measure up and recommend the best bikes to suit your needs or you can reach out to our customer service team who can provide you with more guidance over the phone.

Call 0800 000 283 for Customer Service

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

Shop Your Local Store

Your Store

Choose Availability

Available now at your store

Available now at your selected store for same-day pickup.

Available at nearby stores

Not in-stock at your chosen store but in stock at nearby stores.

Can be ordered into your store

Not in stock locally, but we can order it in for you.

Pre-Order

Not in stock at any stores yet, but can be pre-ordered with a deposit.

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Select all options

Road bike helmets generally feature lightweight aerodynamic designs which help reduce wind resistance and provide ventilation around the rider’s head. Road bike helmets are designed to feature more air vents compared to other helmets such as mountain bike helmets, helping to improve airflow. Shop the best range of road helmets from quality brands. 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.

Road Bike Helmets

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Find Your Size

Step 1: Measure your height

Find Your Size

Step 2: Adjust your inseam

Find Your Size

Your results

Find Your Size

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