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  • Giro - Aeon Helmet   - Matte Flame/Vermillion Fade
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  • Giro - Aeon Helmet   - Matte White/Silver
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  • Giro - Aeon Helmet   - Matte Black

Giro Aeon Helmet

$199.95

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    • Matte Flame/Vermillion Fade
    • Matte Titanium Fade
    • Matte Black/Blue/Purple
    • Highlight YellowPast season color
    • Matte White/SilverPast season color
    • Matte Black/Bright RedPast season color
    • Matte BlackPast season color
    4.5532

    32 Reviews

    Details

    Fit should never be in flux.

    Giro’s ultralight helmet, the aptly named Prolight, weighs in at 22 grams less than the Aeon you see here. What do those 22 grams get you? A more adjustable helmet. The Aeon includes Giro’s Roc Loc 5 adjustment around the circumference of your head, as well as strap buckles beneath your ears, neither of which you’ll find on the Prolight. If you never wear a cap or winter hat, and the Prolight fits just fine, then you’re 22 grams ahead — for the rest of us, there’s the Aeon.

    • Roc Loc 5 adjustment system
    • SL Roll Cage maintains helmet’s integrity in the event of a crash
    • 24 Wind Tunnel vents move air in, through, and out of the helmet
    • Item #GIR0402

    Tech Specs

    Manufacturer Warranty
    1 year
    Recommended Use
    road cycling
    Claimed Weight
    222 g
    Certifications
    CPSC
    Fit Adjustment
    adjustable chin strap, Roc Loc 5
    Ventilation
    24 vents
    Impact Foam
    Thermoformed SL Roll Cage

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great as Always

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Small

    Let me say from the out outset - I have a Giro shaped head. I have not found a helmet brand, other than Lazer, that fits my head so well. I have purchased, used and been happy with Speciaized, and POC, but now that I have another Giro I am asking myself why I ever left. As far as use goes, strap adjustment was a very easy, and I set it up in minutes. The fit works very well with my Smith glasses. The airflow is great, and I am very pleased with the finish, function, and fit. I am extremely pleased.

    Love it

    • Familiarity: I've used it once or twice and have initial impressions

    Very lightweight, breathable, and comfortable. I tried this and the Atmos while shopping for a new helmet. Both are awesome... the Aeon just seemed to fit my melon better. It also looks great and I can ride confidently knowing that, if I ever unintentionally come off the bike, my skull has an extra layer of protection.

    High Vis Brah

    • Fit: True to size
    • Size Bought: Med.

    Yes, it’s light weight and breathable, but more importantly its thermoformed skeleton inside the EPS foam is what keeps my noggin safe. I have used it on the road and on the trail when I need the extra ventilation. Standard fit and I dig the High Vis.

    Great Helmet

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    This is truly a lightweight helmet. Its very comfortable and I quickly forget that it is even on. The venting is excellent (summers are hot and humid here). The straps are narrow and not as rough as my previous helmets (including the old Ionos model). The Roc Loc system adjusts easily and is effective at holding the helmet in place. The only bad thing I can say about the helmet is that it is overpriced. But so is most cycling gear.

    On the road again...

    • Familiarity: I've put it through the wringer

    I've put this helmet through the wringer with Leadville and training for the event. My wife liked the bright color so she could see me from the feedzone. It fits as expected of a GIRO product, pressure points match up to my other Giro's through the years, so no issues with fit or sizing.

    Survived a hard crash at 25mph

    • Familiarity: I've put it through the wringer

    Crashed at 25mph in HH100 this weekend. Landed on my head and shoulder. My immediate thought was no way I 'm not concussed. But after walking around and going thru some mental drills (3 prior concussions so I know the signs) I continued riding. The Aeon structure cracked and split on one of the ribs, but protected me from head damage. It's very light and airy. Not a perfect fit, but workable. I'll retire it now.

    Light + cool + love

    • Familiarity: I've put it through the wringer

    When I first started cycling somewhat regularly, I balked at buying much more than the most basic helmet, as I didn't understand the value in having a very lightweight, well ventilated helmet. After a few thousand miles in the saddle, I got the joke and picked up the Aeon. The Giro helmets all fit my head shape quite well, and when I wear the Aeon, I feel like it is almost not even there. A top quality helmet is a worthy upgrade for anyone who puts in decent mileage on his or her machine.



    Photo: telling my friend Brett to put his bike down (raising it over one's head is a serious roadie rule violation!) after a big ride through CT, NY, and MA. Sharon, CT

    Light + cool + love

    light and stylish

    • Familiarity: I've put it through the wringer

    The Aeon is my favorite Giro helmet. Its very light and breathes better than any of my other lids. I love the way it looks and I've never had an issue with the RocLoc. Tons of color options is nice too!

    super lightweight and breathable

    • Familiarity: I've put it through the wringer

    Not really a fan of the latest helmet designs and styles so I hope that Giro will continue to produce this helmet for a long time. I have ridden this on 100F+ days in georgia and down into the 20's wearing this... No complaints. It is so lightweight that I have had to check with my hands a couple of times on cold days to make sure I had my helmet on...

    What's with all the stars?

    • Familiarity: I've used it once or twice and have initial impressions

    I see a LOT of road cyclists with this helmet so I thought I'd give it a shot. Don't see what all the hype is about. Looks okay but not great (I tried the black). Maybe one of the colored ones would look nice if it matched your kit. But in terms of breathability the mavic plasma or the catlike mixino both breathe better (hence only 3 stars). In terms of comfort I had no complaints.

    ha! Bill, I used the helmet a couple times before deciding it wasn't for me. That was so long ago that it almost seems moot now. After the catlike and the mavic, I am now riding a giro synthe as my main helmet and it is great and just as breatheable as either of those.

    The best for a reason

    • Familiarity: I've put it through the wringer

    I ordered a POC Octal to be quirky/cool/different and match my two Cervelos. I couldn't get over the mushroom vibe no matter how light it was so I returned it for the Giro Aeon. Also toiled over the Catlike, but couldn't be happier I went Giro.

    I got it in fluorescent orange to stick with the high-viz theme and it definitely passes the test. Bright, light, most comfortable helmet I've ever owned.

    It gets breeze to my scalp through my mop of hair and has no compatibility issues with my Oakley Radarlocks. It's a close fit but as long as everything is properly adjusted, you'll forget you're wearing shades or a helmet. Can't say enough good things about the Aeon!

    Adjustment knob breaks off

    • Familiarity: I've put it through the wringer

    Overall a good helmet. However, I've owned three of these, and the adjustment knob has broken off each one within 3-4 months of use. I never adjust the fit while riding, and I am understandably cautious when I do turn the knob. Mechanics at my local bike shop say that manufacturers discount longevity in order to make low weight claims. Come on, people. A stronger knob might add 3-6 grams. It's worth the weight.

    Giro fan forever...

    • Familiarity: I've put it through the wringer

    The Aeon saved my life, literally. I was t-boned during a ride... Before that, it was an extremely comfortable, super light weight, and excellent looking helmet! I would not hesitate to get another and in fact, I just did! Thanks Dan and Competitive Cyclist! Going for the orange one for visibility ;)

    Does not hold sunglasses well

    • Familiarity: I've used it several times

    I just got this helmet a couple weeks ago. Very comfortable and light. I love the adjustment mechanism. The large size does not hold my oakleys at all. It might seem like a silly thing but i'm so used to putting my glasses in my helmet for the long climbs simply with one hand and easily reaching for them when I need them. I would think that would be a design consideration with a helmet of this level. I might return it but I do feel a little guilt about this as I've been using it for a couple weeks now. Really want to really like it.