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The most ventilated and technologically advanced Giro helmet. Features the new RocLoc5 retention system - a claimed 40% lighter than its predecessor but, according to Giro, is more durable with examples during testing withstanding more than 6500 test cycles or three years' riding with an average of three round trips per day. A proprietary in-mold composite sub-frame (I.C.S.) provides the strength to support 21 of the largest vents ever carved into a helmet making Ionos the coolest, best-ventilated helmet available. Perfect for keeping Grand Tour champions like Lance Armstrong and Alberto Contador cool on the hottest days.
Key Features:
- 21 enormous Wind Tunnel vents and optimally placed internal exhaust channels maximize air flow.
- 15 percent better ventilation than the class leading Atmos.
- Includes a winter liner for cooler days.
- Fantastic styling and exposed I.C.R. carbon fibre detailing.
- A visible weave of composite called In-Mould Composite subframe, runs throughout the helmet liner and around the vents.
- The use of composites in the sub-frame provides incredible structural support, impact dispersion and resistance to penetration.
- X-Static fabric pads are woven with pure silver fibres and kill 100% of bacteria.
- Inhibits growth of odour-causing bacteria and fungi within 4 hours after a ride!
- RocLoc 5 fits like a glove allowing lateral and vertical adjustment.
- Weight: 321g (Size Large - Manufacturer claimed).
- Meets CE EN178 certification.
Helmets that are sold on Probikekit.com are certified with a European CE EN1078 standard. This is a European standard and although the helmet is perfectly safe to use, specific countries may have their own certification which is legally required if you intend to wear the helmet recreationally or in a competitive racing environment. If you are unsure, please check your specific country requirements and check with the manufacturer to see if the helmet has received any additional certification.
- Giro
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Customer Reviews
Top Customer Reviews
Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.
A good looking, great fitting helmet despite compact shell design, but pricey..
The Giro Ionos is well-known for its great ventilation, but what's even more important for me is the fit. This is the first 'compact' design helmet (size L) that fit my large head. It was the best helmet I've used until the Aeon was released. The Aeon is unbelievable.
great
very comfortable great ventilation and adjustable. This is great I would get it again. Worth the money and it is quality!
Awesome helmet
This is my second road helmet and I must say it is fantastic. Adjust-ability is fantastic and very easy to use. Helmet is very comfortable and you honestly don't even realise you have it on. Ventilation is unbelievable, lets so much air in so sweat is non existent, only down side to that is in cold conditions you may need a skull cap or similar. The helmet is fairly expensive but in my opinion well worth the investment. Also the helmet looks great too. Only thing I didn't like was the length of the chin strap, I had to cut it and melt the ends so they wouldn't fray, but I guess it isnt a bad thing as others who buy this might need a lot more length. If you are at all considering this helmet my advice would be get it!
Comfortable, well fitting & attractive
This is my second road helmet and although quite expensive it is a great helmet. Extremely nice looking, fits well and plenty of adjustability although I am having some trouble getting it excactly right. The helmet is light and you barely know you are wearing it. The air flow is fantastic, no sweat at all, little cooler on those cold mornings though:) All up very happy with this purchase and the price and delivery to Australia was fantastic.
A feeling of security
I've worn this helmet for two years, in that time...
When wearing this helmet, you feel well protected. Coverage on the brow & side of the head is very good. The RocLoc keeps it firmly planted with no shiftiness while your riding.
It ventilates beautifully; so well in fact that at the end of a summer ride my hair will have been swept up into several of the vents. Considering the superb ventilation, I would take this over something like the Giro ProLite, which despite its weight savings ventilates nowhere near as well.
The sense of protection & ventilation do create a larger volume helmet than I was previously familiar with. It is noticeably larger than you might expect when wearing it. But putting the size of the thing aside for a moment, the rest of the aesthetics are spot on. The graphics are sharp looking & the carbon details are a nice touch.
A thermal cap is included with the helmet for cold weather rides. As fall rolls around, remove the stoke pads, place them somewhere safe; in their place insert the thermal cap & you're set for all but the very coldest rides. As for the stock pads, they are treated to not develop a stink after hundreds of hours of riding. Having said that, I haven't had a pair of the pads last for longer than a season (roughly 8,000 miles for me) before they begin to fall apart. That is maybe the only disappointing thing about the helmet for me.
I've have heard that people with longer, narrower head shapes can find the helmet uncomfortable, since it seems to be molded around a more round head shape.
Great helmet, wonderful security & looks sharp, but Giro needs to provide more stout pads.
heavy
For all of its popularity, this helmet is heavy. The praise for the Roc-Lok system may be true for some. Although, you can't adjust it while riding. Personally, I never got the straps to fit as well as with other helmets.
GIRO is an excellent company. They have incredible support.
The point of attachment for the Roc-Lok came undone. Giro replaced the helmet, no problem.