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Giro Ionos Helmet

Cycling > HelmetsRated: **** by 6 reviews.

REI

Giro introduces the top-of-the-line Ionos (pronounced eye-oh-nOs) road bike helmet.

  • After three years in the development process, Ionos was tested by 27 riders who together logged over 50,000 miles in the '07 Tour de France
  • Based on their feedback, Giro developed its lightest, coolest, toughest helmet yet—the Ionos
  • Through Giro's careful sculpting, weight scrutinization and use of lightweight materials, the Ionos seems to disappear when you put it on
  • Ionos is built around 21 massive vents and features a system of ventilation channels throughout the liner
  • Internal exhaust channels thrust cool, fresh air over and around the head while forcing heat and stale air out
  • In-mold technology fuses the liner with the microshell to create an exo-skeleton that's light, cool, and exceptionally durable
  • In addition, the subframe is reinforced around the ribs and vents for incredible structural support, impact dispersion and penetration resistance
  • Roc Loc 4® offers full adjustment of the fit tension and the helmet's vertical position, for a truly personalized fit
  • Giro's proprietary fitting system results in a helmet that fits 98% of the population, yet looks as if it was made just for you
  • Sizing:
  • Small fits 20 - 21.75 in.
  • Medium fits 21.75 - 23.25 in.
  • Large fits 23.25 - 24.75 in.

O2GearShop.com (Spring 2009)

The most beautiful and technologically advanced road cycling helmet Giro has ever created is now available! Born from three years of pro-level testing and development with cooling ventilation that's beyond compare, a comfortable fit and an inspired look that's sure to sure to turn heads - it's no wonder this helmet keeps flying off the shelves!

Features:

  • 21 massive Wind Tunnel vents with internal channels thrust 15% more cool, fresh air over and around your head while forcing heat and stale air out
  • Fully adjustable, Roc Loc 4 retention system aligns the helmet's fit tension and vertical position for a truly custom fit
  • Impact absorbing X-Static padding gives you comfortable cushioning
  • In-Mold Composite Sub Frame is tuned to deliver incredible structural support, impact dispersion and resistance to penetration (and it's the secret to the Ionos' ability to offer great big vents without compromising protective capability)
  • In-Mold construction provides strength, integrity and is so lightweight, it virtually disappears when you put it on!

Al's Sports (2009)

Ionos is the most technologically advanced road cycling helmet Giro has ever created. Our revolutionary in-mold composite sub-frame (I.C.S) provides the strength to support 21 of the largest vents ever carved into a helmet. These massive vents, coupled with an intricate network of internal exhaust ports, create a cooling system we call the Wind Tunnel ventilation. Ionos keeps riders like Grand Tour Triple Crown Champion Alberto Contador cool and comfortable all season long.


Jenson USA (2009)

The Ionos helmet is the most technologically advanced road cycling helmet in Giro's lineup, with features to keep you cool and comfortable with it's massive vents and exhaust ports.

Features:

  • Composite subframe
  • Cool Vents
  • In-mold technology
  • Ionos winter kit
  • Roc Loc 4 fit system
  • Super Fit engineering
  • Wind tunnel ventilation
  • X-static helmet padding

Paragon Sports (2008)

The Giro 2008 Ionos Road Helmet,Internal Channeled Ventilation

Features:

  • In-Mold Composite Sub Frame
  • In-Mold Construction
  • Roc Loc 4 Fit System
  • Vents: 21
  • Wind Tunnel Vents Internal Channeled Ventilation
  • X-Static Padding
Fit system:Roc Loc 4
In-mold construction:Yes
Retention System:Roc Loc 4
Vents:21
Visor:No
Weight:275 grams

View other products from Giro classified in Cycling > Helmets.

View all products from Giro.
View other products classified in Cycling > Helmets.

Sometimes, we can't be sure that the product is the same across the stores that offer its, so you may find the same product listed more then once on GearBuyer.com, we these list highly similar products below.

Giro Ionos Cycling HelmetGiro Ionos Cycling Helmet$229.99 - $230.00
Giro Ionos Livestrong HelmetGiro Ionos Livestrong Helmet$195.00 - $230.00

Sometimes brands make complementary products for the opposite gender that coordinate with this product, we also try to show these products below.

Giro Ionos Cycling HelmetGiro Ionos Cycling Helmet - Women's$137.97

These are products that have been indicated being comparable to this product:

Giro Atmos HelmetGiro Atmos Helmet
Cycling > Helmets
$105.00 - $175.00
Giro Stylus Cycling HelmetGiro Stylus Cycling Helmet
Cycling > Helmets
$50.97 - $85.00
silver star GearBuyer.com Top 25 Category Product
View other top products in this category...

Option Availability:

Use this chart to find which retailer offers this product in the size, color or other options that you desire. Click on the price to purchase.

ColorSize
SmallMediumLarge
Black / Blue
Black / Blue
134.93134.93134.93
Blue / White
Blue / White
134.93230.00134.93230.00230.00
Discv Blue / Blk
Discv Blue / Blk
 224.99 
Black / Carbon
Black / Carbon
184.00230.00184.00224.99230.00184.00230.00
Matte Black / Gold Checkers
Matte Black / Gold Checkers
230.00230.00230.00
Matte Black / Red
Matte Black / Red
230.00230.00230.00
Matte Black / White
Matte Black / White
134.93134.93134.93
Matte Light Blue / White
Matte Light Blue / White
230.00230.00230.00
Matte Titanium
Matte Titanium
184.00230.00184.00230.00184.00230.00
White / Silver
White / Silver
184.00230.00184.00230.00184.00230.00
Black / Magenta184.00184.00184.00
Blue / Black184.00184.00184.00
Red / Black
Red / Black
134.93184.00184.00184.00224.99
Titanium 230.00 

Legend

  •     - Jenson USA (2009)
  •     - O2GearShop.com (Spring 2009)
  •     - REI
  •     - Paragon Sports (2008)

Notes:

Al's Sports (2009) offers this product at $224.99, but does not provide any color/size information.

Giro Ionos Helmet Reviews Summary:

RatingNumber
of Reviews
*****4
****0
***1
**1
*0
To see how this product compares to others view Bike Helmet Reviews.

Positive Reviews:

Great helmet

Rating:*****
I use this helmet to ride with a couple of riding groups. It is lite and allows pretty good ventilation. It did take a little longer for the straps to be adjustable to my head. Otherwise, just like the other Giro helmets I have used in the past ... great.
Dennis the adventurer at REI on 05/08/2009

Lightweight protection

Rating:*****
Use this for commute and mountain biking. Lightweight, excellent ventilation, good vision (no visor). Ventilation made a difference as I have noticeably better endurance. If you are on your bike more than a couple times a week, this helmet is worth the extra $$$'s.
mEgacAt13 at REI on 07/03/2008

this helmet saved my life

Rating:*****
this helmet saved my life. since the foam cracked during my accident(by design for safety), i have retired it and purchased another ionos. stay safe out there, and wear your ionos!
productnine at REI on 10/14/2008

Great Helmet for a great sale price

Rating:*****
I bought this helmet for riding with my road buddies. It was everthing I have found Giro helmets to be.
Dennis the adventurer at REI on 05/03/2009

Negative Reviews:

not worth extra money ...

Rating:**
not any more lighter than the atmos. it is definitely not worth the money as there are really no major improvements over the atmos. ventilation is supposed to be better and helmet is said to be lighter - NOT TRUE. not much wrong with the helmet per se but just seriously not worth the money when the atmos is pretty much exactly the same for much less money. and seriously, when will Giro fix the problems with the back of helmet adjustment mechanism, every giro helmet i have had (and everyone i know) breaks after a good amount of use -- less than desirable to say the least
lootnerhead at REI on 05/26/2009

Neutral Reviews:

wow

Rating:***
wow not any better than the Atmos... def not worth the price. not any lighter, not any more ventilated, fit was ehh.. just not any better. only thing that is higher is the price. dont get me wrong i swear by Giro. these lids have saved my life twice both in races. one was a Pneumo one of the best helmets ever made. the other was an Atmos THE greatest helmet ever made. i bought this to replace my Atmos and was somewhat disappointed. save the cash buy an Atmos you wont be dissapointed.. ride smart, be safe.
andy9 at REI on 01/30/2009