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Giro Aerohead Ultimate MIPS Aero/Tri Helmet 2018

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Product Description

Giro pioneered the aerodynamic helmet category with the original Advantage in 1985, and now we are redefining it with the new Aerohead Ultimate MIPS - our fastest time trial helmet ever. We leveraged every resource available to create a helmet that tops the podium in speed, weight, style and comfort.

The shell is constructed with TeXtreme carbon fibre, an advanced material that is lighter and stronger than other carbon composites. The wrap-around eyeshield offers an unblocked field of view with a huge aerodynamic benefit and the shield is made by ZEISS Optics for unrivalled clarity.

A magnetic anchor attachment keeps the shield secure, yet easy to remove, and it can be stored in the "flipped up" position.

Other stand out features include a Roc Loc Air fit system and a hydrophilic, anti-microbial brow pad that can absorb up to ten-times the amount of sweat as standard urethane padding. Additionally, this helmet is equipped with the MIPS system to redirect impact energy, providing more protection in certain impacts.

Key Features:

  • TeXtreme carbon fibre shell
  • Super Fit Engineering
  • Eye shield made by ZEISS Optics
  • Magnetic lens anchor attachment
  • MIPS technology
  • Hydrophilic padding with X-Static anti-microbial fabric
  • Includes helmet pod for travelling and second clear shield
  • Construction: Hybrid construction, TeXtreme carbon fibre shell with in-moulded EPS liner
  • Fit System: Roc Loc Air
  • Vents: Vented shield, Over-brow ventilation, Internal channelling
  • Weight: 415g

Technologies:

Introducing Aerohead

Giro pioneered the aerodynamic helmet category with the original Advantage in 1985, and now we are redefining it with two new models – Aerohead Ultimate MIPS and Aerohead MIPS– our fastest time trial helmets ever.

TeXtreme Carbon Fibre

TeXtreme carbon fibre is woven in flat sheets instead of threads, producing a carbon fibre that’s ultra-stiff, yet lighter because it requires less resin. In fact, in our shoe outsoles, it has the same stiffness profile as the Easton SLX II outsole but with a 22% weight savings.

X-Static Fiber

X-Static Fiber – X-Static fibers use natural silver to offer heat conductive and anti-microbial properties to help keep your hands warm, and your gloves free of odor-causing bacteria and fungus.

Lenses By Zeiss Optics Shield With Magnetic Attachment

The wrap-around eye shield offers an unblocked field of view with a huge aerodynamic benefit and the shield is made by ZEISS Optics for unrivaled clarity. A magnetic anchor attachment keeps the shield secure, yet easy to remove, and it can be stored in the “flipped up” position.

MIPS

All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro’s MIPS-equipped helmets is to reduce rotational forces. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider’s brain in certain impacts. Learn more about MIPS in the video above.

Roc Loc Air Fit System

This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhaust heat out of the helmet.

Fit and feel adjustments mimic the Roc Loc 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.

Hydrophilic Padding

The Hyrdrophilic Pad can absorb up to 10 times its own weight in water, helping you manage sweat while riding. The pad retains moisture to prevent sweat from dripping into your eyes, and then dries quickly. The antimicrobial, X-Static lining helps to reduce odor, keeping your helmet fresh.

Super Fit Engineering

Our proprietary Super Fit sizing system is based on “human scale factors” data and over 25 years of handcrafting helmets. By creating helmet molds in up to 4 adult sizes to match the human body’s form, our Super Fit sizes comfortably and securely fit riders, and feel like they are custom made just for you.


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Giro Helmet Sizing

Giro

Use the Giro size chart to find the best fit for you.

Giro Helmets Size Chart

Universal Sizing

Adult 21.25 - 24" 54 - 61cm
Women 19.75 - 22.5" 50 - 57cm
Extra Large 22.75 - 25.5" 58 - 65cm
Youth 19.75 - 22.5" 50 - 57cm
Child 19.75 - 21.75" 50 - 55cm

Youth Sizing

Small/Medium 18 - 19.75" 46 - 50cm
Medium/Large 19.75 - 21.5" 50 - 54cm
Toddler 18.75 - 20.5" 48 - 52cm

SuperFit Sizing

SuperFit sizing system is based on "human scale factors" data and over 25 years of handcrafting helmets. By creating helmet molds in up to 4 adult sizes to match the human body's form, our SuperFit sizes comfortably and securely fit riders, and feel like they are custom made just for you. 

Models Include: Aerohead Ultimate MIPS, Aeon, Fathom, Savant, Foray MIPS, Sutton, Sub Pop Foray, Reverb, Quarter, Sonnet, Saga MIPS, 

Extra Small 18.5 - 20" 47 - 51cm
Small 20 - 21.75" 51 - 55cm
Medium 21.75 - 23.25" 55 - 59cm
Large* 23.25 - 24.75" 59 - 63cm
Extra Large 24 - 25.55" 61 - 65cm

*The Large Quarter bike helmet is the following dimensions: Large: 23.25" - 24.25" / 59-61.5cm

Disciple MIPS Helmet Sizing

Extra Small 20 - 20.75" 51 - 53cm
Small 21.25 - 22" 54 - 56cm
Medium 22.5 - 23.25" 57 - 59cm
Large 23.5 - 24.75" 60 - 62cm

Read our clothing size guide for more information on sizing.

Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!

Road Helmet Guide

 

Road Helmets

Wearing a road helmet while cycling is the best way to maximise your safety. All our road cycling helmets meet the minimum EU safety standard (CE EN1078); what you pay for is aerodynamics, reduced weight, more vents and enhanced safety features such as MIPS. 

We’ll look at all these features in-depth below:


Features

Shell

Most bike helmets are built with an outer plastic shell bonded to polystyrene inner. It’s this inner material which absorbs the energy from an impact. The plastic outer layer stops small bumps and scratches from damaging the inner, and it also stops UV rays degrading the polystyrene.

Road helmets are designed to be as lightweight and aerodynamic as possible with plenty of venting to keep you cool.

Performance road cycling helmets are more aerodynamic to reduce drag as you ride. High-end models often go through some form of wind-tunnel testing for efficiency. Time Trial helmets may taper like a tear drop at the back to help wind slip around the lid and out the back.

Road helmets are designed to be light, aerodynamic and well ventilated

Core

Bike helmets are constructed of Expanded Polystyrene (EPS) which is a great material for absorbing impacts, whilst being lightweight. 

Nowadays almost all helmets use in-mould technology where the shell and EPS core are moulded together, allowing for more intricate shaping for vents and aero designs. It also stops the shell separating from the core. Crucially in-mould lids improve impact forces transferring to the foam core.

Consider foam density when making your choice. Helmets with single density foam will deform more in a collision than those with multi-density foam, which offer more impact protection.

A brand-new material called Koroyd is coming onto the market and offers enhanced protection with a lighter weight. Thermally welded hollow tubes form a honeycomb structure which can absorb 30% more energy than a similar cycling helmet made from polystyrene. Koroyd also enhances ventilation as all those hollow tubes allow heat to escape.

In-moulded helmet with large ventilation channels - for better cooling

MIPS

Mips (Multi-directional impact protection system) is a new safety technology being released on premium helmets. It is a moveable plastic layer that sits within the helmet and slips around your head during angled impacts. This helps to reduce twisting impact forces on your brain. Currently helmets with MIPS are pricey, however, the slip-plane technology is getting cheaper all the time.


Fit & Straps

Fit is a key part of safety and comfort. All road helmets feature an adjustable fit system that ensures the helmet stays securely attached to your head.

There are a few variations, but the theme is generally the same, a retention system pulls the inside liner webbing together to cradle your head. Many helmets will come with a ratchet dial on the rear that you can adjust. Look for a dial system that can be used easily with one hand, so you don’t have to stop cycling to adjust the fit. Premium lids will also come with height adjustment, offering a better fit for all head shapes.

Chin straps are there to keep your helmet in place, even if you have a fall. These are usually fully adjustable on all helmets.

A road rider wearing a helmet with correctly adjusted straps

Liner Padding

Liner padding is essential for comfort while wearing your helmet. It is the part of the helmet that directly contacts your head. If you’re a regular rider then you’ll want quick drying, hydrophilic and anti-microbial padding to help reduce odour. Removable padding is great for a deep clean.

Liner padding is essential for comfort

Ventilation

When choosing a road cycling helmet, ventilation is key for comfort and it will be a big factor in the cost of the lid you choose. The general rule of thumb is the more expensive a road helmet is, the more advanced the ventilation will be, and the more vents you’ll get.

More sophisticated venting systems link deep vent channels from the front through to the rear of the helmet. These channels work to pull cooling air over your head and out through the exhaust ports.

Aero road helmets will limit the use of vents to create a clean, slippery profile to help reduce drag. You can even find helmets with vents you can snap shut if you need an aero boost, or open for breathability. You’ll find that TT lids will have no vents at all because of aerodynamics.

Rider wearing a well ventilated road helmet

Weight

Wearing a heavy helmet on a long cycle ride is uncomfortable. When it comes to road helmets, the more you spend, the lighter it will be. Helmets can range anywhere from 190g at the premium end of the market to over 600g for entry level models.

Lighter weight helmets tend to offer more comfort

Sizing

It is important to get a helmet that fits correctly. Simply measure the circumference of your head and match it to the helmet size. Do this by placing a tape measure on the centre of your forehead and wrap it around your head above the ears. See our clothing size guide for more details.

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Delivery & Guarantee

UK Delivery Information

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE to mainland UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns.

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.

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