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Giro Helios Spherical Helmet

Giro Helios Spherical Helmet
  • Color: Matte Ano Blue
  • Color: Matte Black Crossing
  • Color: Matte Black Fade
  • Color: Matte Black/Red
  • Color: Matte White/Silver Fade
Please select options


Giro design, and high-performance innovation for core road cyclists, gravel enthusiasts, and adventure riders.

Advanced Performance for the Adventurous
The heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS, the market-leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and performance. In addition to advanced head protection, the Helios's 15 Wind Tunnel vents provide exceptional cooling power that's enhanced by our patented Roc Loc 5 Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. It's the ideal match for your road and gravel adventures.

- Impact Management: Spherical Technology, Powered By Mips
- Construction: Independent, in-mold liners with spherical ball-and-socket design, Polycarbonate Shell, Hardbody Lower Shell
- Ventilation:15 wind tunnel vents with internal channeling
- Fit System: Roc Loc 5 Air
- Weight: 270 (Size Medium CPSC, CE)
- Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older
E.U.: CE EN1078
- Highlights: Nanobead EPS Foam, Coolfit Antimicrobial Padding, Slimline Webbing, Four-piece shell w/lower hardbody

Adult Super Fit SizeCircumference
X-Small 47 - 51cm
Small 51 - 55cm
Medium 55 - 59cm
Large 59 - 63cm
X-Large 61 - 65cm

US CPSC, E.U.: CE EN1078

Part Numbers

Option UPC MPN Store SKU
Matte Ano Blue / Small 768686478536 7140314 GRH2522351U
Matte Ano Blue / Medium 768686478543 7140315 GRH25691269U
Matte Ano Blue / Large 768686478550 7140316 GRH25538102U
Matte Black Crossing / Small 768686478567 7140320 GRH26309846U
Matte Black Crossing / Medium 768686478574 7140321 GRH2645876U
Matte Black Crossing / Large 768686478581 7140322 GRH26651292U
Matte Black Fade / Small 768686381492 7129134 GRH33944299U
Matte Black Fade / Medium 768686381508 7129135 GRH33468338U
Matte Black Fade / Large 768686381515 7129136 GRH33169666U
Matte Black/Red / Small 768686381553 7129152 GRH33161835U
Matte Black/Red / Medium 768686381560 7129153 GRH3351813U
Matte Black/Red / Large 768686381577 7129154 GRH33816830U
Matte White/Silver Fade / Small 768686381614 7129170 GRH2985748U
Matte White/Silver Fade / Medium 768686381621 7129171 GRH29276329U
Matte White/Silver Fade / Large 768686381638 7129172 GRH29498814U