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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
Please select options


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 9995921MATTE-BLACKS-51-55CM
Matte Black / Medium 768686266287 7113319 9995921MATTE-BLACKM-55-59CM
Matte Black / Large 768686266294 7113320 9995921MATTE-BLACKL-59-63CM
Matte Black / X-Large 768686266300 7113321 9995921MATTE-BLACKXL-61-65CM
Matte Black Hypnotic / Small 768686266355 7113330 9995921MAT-BLK-HYPNOS-51-55CM
Matte Black Hypnotic / Medium 768686266362 7113331 9995921MAT-BLK-HYPNOM-55-59CM
Matte Black Hypnotic / Large 768686266379 7113332 9995921MAT-BLK-HYPNOL-59-63CM
Matte Chalk / Small 768686376504 7129506 9995921MATTE-CHLKS-51-55CM
Matte Chalk / Medium 768686376511 7129507 9995921MATTE-CHLKM-55-59CM
Matte Chalk / Large 768686376528 7129508 9995921MATTE-CHLKL-59-63CM
Matte Portaro Grey / Small 768686376535 7129515 9995921MAT-PORT-GRAYS-51-55CM
Matte Portaro Grey / Medium 768686376542 7129516 9995921MAT-PORT-GRAYM-55-59CM
Matte Portaro Grey / Large 768686376559 7129517 9995921MAT-PORT-GRAYL-59-63CM
Matte Trim Red / Medium 768686376573 7129525 9995921MATTE-TRM-REDM-55-59CM
Matte True Spruce/Citron / Small 768686266614 7113369 9995921MAT-TRU-SPR-CTRS-51-55CM
Matte Trail Green / Medium 768686476907 7140592 9995921MAT-TRL-GREENM-55-59CM