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Giro Radix MIPS Helmet

Giro Radix MIPS Helmet
  • Color: Matte Black
  • Color: Matte Black Hypnotic
  • Color: Matte Bright Red/Dark Red
  • Color: Matte Midnight
  • Color: Matte Chalk
  • Color: Matte Harbor Blue
  • Color: Matte True Spruce/Citron
  • Color: Matte Metallic Black/Ano Lime
  • Color: Matte Portaro Grey
  • Color: Matte Trim Red
  • Color: Matte Trail Green
Color: Matte Black
Size: Select size
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 GIR25381479K
Matte Black / Medium 768686266287 7113319 GIR25356194K
Matte Black / Large 768686266294 7113320 GIR25118975K
Matte Black / X-Large 768686266300 7113321 GIR25945985K
Matte Chalk / Small 768686376504 7129506 GRR23815444S
Matte Chalk / Medium 768686376511 7129507 GRR23654637S
Matte Chalk / Large 768686376528 7129508 GRR23849883S
Matte Harbor Blue / Small 768686476860 7140576 GRR25353292S
Matte Harbor Blue / Medium 768686476877 7140577 GRR25262760S
Matte Harbor Blue / Large 768686476884 7140578 GRR25698672S
Matte Trail Green / Small 768686476891 7140591 GRR25493746S
Matte Trail Green / Medium 768686476907 7140592 GRR25467642S
Matte Trail Green / Large 768686476914 7140593 GRR25966115S