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Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51

Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51

(124 reviews)

Whether tour, trail ride or CC, with its low weight, excellent ventilation and large protection zones You feel perfectly protected in any terrain.

Whether tour, trail ride or CC, with its low weight, excellent ventilation and large protection zones You feel perfectly protected in any terrain.

$125.00 - $249.71

in 21 offers

Colour:

Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Radix Matte Black Helmet M
Giro Radix MTB Helmet Grey S
Giro Radix MTB Helmet Grey M
Giro Radix MTB Helmet White S 7129485
Giro Radix MIPS Helmet Matt Black - L
Giro Radix Helmet Blue - S
Giro Radix Helmet Red - M
Giro Helmet - Radix Dirt Helmet Portaro Grey L 59-63cm Size: L 59-63cm

Size:

S 51-55cm
M
M 55-59cm
L

Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51

$125.00

(124 reviews)

Whether tour, trail ride or CC, with its low weight, excellent ventilation and large protection zones You feel perfectly protected in any terrain.

Whether tour, trail ride or CC, with its low weight, excellent ventilation and large protection zones You feel perfectly protected in any terrain.

Colour:
Giro Helmet - Radix Dirt Helmet Matte Trail Green S 51-55cm Size: S 51
Giro Radix Matte Black Helmet M
Giro Radix MTB Helmet Grey S
Giro Radix MTB Helmet Grey M
Giro Radix MTB Helmet White S 7129485
Giro Radix MIPS Helmet Matt Black - L
Giro Radix Helmet Blue - S
Giro Radix Helmet Red - M
Giro Helmet - Radix Dirt Helmet Portaro Grey L 59-63cm Size: L 59-63cm

Size

S
​

Price comparison

Last updated at 26/10/2025 00:10:52

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$109.99

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eBay - mountainbikesdirectau

$51.95

available 13 days ago

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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

BIG W - BIG W MARKET

$174.99

available 13 days ago

Low stock

Price history

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Price history

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Reviews

Extremely light and durable
22 March 2021
Andrew K.

originally posted on tredz.co.uk

Giro quality
18 July 2023
Ekaterina

originally posted on bikeinn.com

Good fit!
17 June 2020

originally posted on tredz.co.uk

Specification

FIT SYSTEMRoc Loc 5.5
VENTILATION25 holes Wind Tunnel with internal ducting

Price comparison

Updated about 1 hour ago
Amazon

$266.24

Low Stock
Pushys

$109.99

Low Stock
Performance Bicycle

$125.00

Urban Pedaler

$127.46

Gearshop NZ

$133.85

See 3 more history offers

Pedal Inn Bicycle Garage

$174.99

Low Stock
eBay - mountainbikesdirectau

$51.95

Low Stock
BIG W - BIG W MARKET

$174.99

Low Stock

Price history

​
​

Price history

​
​

Reviews

Extremely light and durable
22 March 2021
Andrew K.
originally posted on tredz.co.uk
Giro quality
18 July 2023
Ekaterina
originally posted on bikeinn.com
Good fit!
17 June 2020
originally posted on tredz.co.uk
Good fit and comfortable
22 July 2020
Paul F
originally posted on sigmasports.com
Great helmet
5 August 2020
Andy
originally posted on sigmasports.com
Light & comfortable.
18 July 2020
Noah’s
originally posted on bikeinn.com
Nice lightweight helmet
18 August 2022
nimnyp
originally posted on sigmasports.com
Radix hypnosis
25 July 2023
R M.
originally posted on biketart.com
Radix MIPS MTB Helmet
23 December 2021
Pete68
originally posted on sigmasports.com
Sleek, Sizes and Price!
12 November 2020
Tembe
originally posted on sigmasports.com

Specification

FIT SYSTEMRoc Loc 5.5
VENTILATION25 holes Wind Tunnel with internal ducting