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Giro Radix MIPS Helmet

Giro Radix MIPS Helmet
  • Color: Matte Black
  • Color: Matte Chalk
  • Color: Matte Harbor Blue
  • Color: Matte Metallic Black/Ano Lime
  • Color: Matte Portaro Grey
  • Color: Matte Trail Green
$112.49 - $149.99
Please select options Unavailable


The Radix MIPS helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight, and ventilation riders need to ride comfortably and confidently, all day.

The Radix MIPS helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation.

The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. Visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our in-mold construction process, to enhance durability and ventilation without excess bulk.

- Construction: Full-wrap in-mold polycarbonate shell with EPS liner
- Sport: Cycling
- Number of vents: 25
- Ventilation type: Wind tunnel vents with internal channeling
- Fit system: Roc Loc 5.5 MIPS


Adult Super Fit SizeCircumference
Small 51 - 55 cm
Medium 55 - 59 cm
Large 59 - 63 cm
X-Large 61 - 65 cm

Note: We recommend you try helmets on before buying. Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

Part Numbers

Option UPC MPN Store SKU
Matte Black / Small 768686266270 7113318 GIR28739032L
Matte Black / Medium 768686266287 7113319 RAD20971557M
Matte Black / Large 768686266294 7113320 RAD20747036L
Matte Black / X-Large 768686266300 7113321 GIR29292881E
Matte Chalk / Small 768686376504 7129506 RAD18576883S
Matte Chalk / Medium 768686376511 7129507 RAD18127550M
Matte Chalk / Large 768686376528 7129508 RAD18463253L
Matte Harbor Blue / Small 768686476860 7140576 RAD20832475S
Matte Harbor Blue / Medium 768686476877 7140577 RAD20268027M
Matte Harbor Blue / Large 768686476884 7140578 RAD20964569L
Matte Metallic Black/Ano Lime / Small 768686476921 7140603 RAD19387551S
Matte Metallic Black/Ano Lime / Medium 768686476938 7140604 RAD1989518M
Matte Metallic Black/Ano Lime / Large 768686476945 7140605 RAD19436523L
Matte Portaro Grey / Small 768686376535 7129515 RAD21966385S
Matte Portaro Grey / Medium 768686376542 7129516 RAD21948205M
Matte Portaro Grey / Large 768686376559 7129517 RAD21450133L
Matte Trail Green / Small 768686476891 7140591 RAD21990011S
Matte Trail Green / Medium 768686476907 7140592 RAD21672247M
Matte Trail Green / Large 768686476914 7140593 RAD21875605L