Giro Helios Spherical Road Bike Helmet - White - Medium

The Giro Helios Spherical Helmet is a high-performance road and gravel helmet designed to deliver ...

Best current price£134.99from Tredz

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6 offers from £134.99 - £169.95

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TredzGiro Matte White Helios Spherical Mips Road Cycling Helmet Size 15
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£134.99
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Tweeks CyclesGiro Helios Spherical Helmet - Matte White, L (59-63cm)
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£159.00
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Merlin CyclesGiro Helmets Matt White Giro Helios Spherical Road Bike Helmet - / Large / 59Cm / 62.5Cm
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£169.95
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Product Information

Full details

The Giro Helios Spherical Road Bike Helmet is designed for dedicated road and gravel cyclists who prioritize advanced safety technology and cooling efficiency. Featuring Giro's ball-and-socket Mips-powered design and progressive dual-density EPS foam, it provides superior impact management for various crash scenarios; however, users should note that the specialized fit system requires careful initial adjustment to ensure the floating retention design sits correctly against the skull.

All features

Age Groupadult
ColourWhite
GenderUnisex
Model Part Number38955-067-M
BrandGiro Helmets

Extended Product Information

FAQs

Does the Helios feature Mips protection?

Yes, it uses Giro's Spherical Technology, which is powered by Mips in a ball-and-socket design.

Can I use this for mountain biking?

While it is optimized for road and gravel, its protection level is high, though it lacks the extended rear coverage and visor found on dedicated MTB helmets.

How do I know which size to pick?

Measure the circumference of your head just above your eyebrows. Medium generally covers standard adult sizing; ensure you check your measurement against the specific size guide for small, medium, and large variants.

Is the padding replaceable?

Yes, the antimicrobial pads can be removed for washing or replaced if they wear out over time.

How does the Roc Loc 5 Air system improve cooling?

It suspends the helmet slightly off the head, creating a gap that allows air to flow freely across the scalp instead of trapping heat against a contact surface.

Troubleshooting

Helmet feels unstable on the head

Adjust the rear Roc Loc dial further and ensure the side strap 'Y' junction is properly positioned below the ears.

Head overheating during rides

Verify that your hair is not obstructing the front Wind Tunnel vents and ensure the internal channelling is not blocked by heavy sweat-soaked pads.

Padding smells after heavy use

Remove the antimicrobial padding and hand-wash with mild detergent to refresh the silver-infused fabric fibers.

Pros and Cons

Pros

  • Advanced rotational impact protection via Mips Spherical technology
  • Excellent ventilation through wide vents and internal channels
  • Breathable and odor-resistant interior padding
  • Precise, adjustable fit with the Roc Loc 5 Air system
  • Lightweight and suitable for both road and gravel cycling

Cons

  • Higher price point reflecting premium safety features
  • Fit system requires precise tuning for optimal comfort
  • Design may not offer as much aerodynamic profiling as dedicated aero helmets

Setup, Compatibility & Care

To set up the helmet, loosen the Roc Loc 5 Air dial completely before placing it on your head. Position the helmet level on your forehead, then tighten the rear dial until the fit is snug but comfortable. Ensure the side straps are positioned just below your ears to prevent shifting. For care, remove the IONIC+ padding periodically and hand-wash it with mild soap and cold water. Avoid using harsh chemical cleaners on the shell, as these can degrade the material over time. Always store the helmet in a cool, dry place away from direct sunlight when not in use.

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