Giro has a brand new top-of-the-line street helmet. Known as the Aries, their latest helmet with ‘Spherical Expertise Powered by MIPS’ takes the place of the Aether as their light-weight, extremely ventilated, and barely extra aerodynamic champion of their helmet line.

Testing Cooler
Whereas the margins are comparatively small, Giro is assured they’ve made vital enchancment over the Aether. A lot of that comes from their very own in-house testing and design at their DOME take a look at lab. Going past the everyday affect testing that the majority helmets face, Giro contains checks on fixtures just like the Therminator – aluminum headform with 30 thermocouples that measure precise temperature variations the person is more likely to expertise. The Therminator is heated as much as 100º, after which air passes by means of the helmet within the wind tunnel for half-hour. Giro can observe the beginning temp, finish temp, and adjustments in temperature each second.

Utilizing this course of, they decided the brand new Aries is 2.3% cooler than the Aether. That’s no small feat contemplating the Aether was already a massively ventilated helmet. A part of that cooling is deep inner channels that scale back the contact patch of your helmet to your head for higher cooling.

The Eclipse continues to be Giro’s Aero-focused street helmet whereas the Aries is a street do-all helmet, however Giro mentions that “aero is at all times on.” They confirmed that visually smaller helmets are typically truly sooner be sooner within the wind tunnel, and that’s true right here as effectively. The Aries is 7% smaller facet to facet in comparison with the Aether which leads to a narrower profile. The angle of the Aura reinforcing bridge can be optimized for a using angle of 30º, with the main edges chamfered for streamlining. Every vent can be optimized for aerodynamics and cooling, with air exiting the middle vent sooner than it enters.
All of those aero touches add as much as a 4% discount in drag over Aether. That’s not an enormous quantity, however at this degree, each bit counts. The Eclipse will nonetheless be the quickest helmet aerodynamically by about 6%.

Aura II Reinforcement
One of many most important challenges to designing a helmet just like the Aries is making a helmet that’s extra air than foam however nonetheless protecting. With 24 sizeable vents, you want one thing to stop the helmet from blowing aside upon affect. The Aether already used their Aura polycarbonate reinforcing bridge, however the Aries takes it to the following degree with Aura II.

Utilizing the identical expertise, Giro break up the primary bridge into two thinner bands that stretch from one facet of the helmet to the opposite.

There’s additionally a brand new bridge upfront that kinds a hoop on the entrance of the helmet. The mixture of those reinforcing bridges enable the helmet to outlive affect testing the place the helmet is dropped onto triangular, spherical, and flat profiles.

Spherical Expertise Powered By MIPS
Just like the Aether, the Aries continues using Spherical Powered by MIPS expertise. As a substitute of a MIPS liner added to the within of the helmet, Spherical helmets are constructed with two completely different halves that act as a ball and socket joint with the MIPS layer sandwiched in between. This additionally permits Giro to make use of completely different density foam – you’ll discover a more durable density on the outer shell, and softer density on the inside shell, which helps the helmet deal with low-speed and high-speed impacts.

Precise Weight
But, even with all of this, the Aries continues to be claimed to be 5% lighter than the Aether. The claimed weight for a CE-rated medium helmet is 265g, which might have positioned it just below our CE-rated pattern Aether. Although when the Aether was launched, the claimed weight was 250g for a CE-rated medium. This CPSC-rated medium is available in heavier at 280g.
It’s additionally the highest-rated helmet Virginia Tech has ever examined in response to Giro. The corporate factors out that each one Giro bike helmets have a 5-star ranking from Virginia Tech, however the Aries has the most effective rating of all helmets together with enduro and DH helmets.


Retention System & Revolutionary Padding
Contained in the Aries, you’ll discover Giro’s usually wonderful Roc Loc 5+ Air retention system with horizontal and vertical adjustment. Most fascinating may be the brand new DryCore padding on the entrance. Whereas trying like a traditional pad, there’s a hidden inner silicone bead that can redirect sweat away out of your eyes and channel it to the temple. Helmets will even ship with a traditional entrance pad for those who desire it.

First Impressions
I’ll say that whereas carrying the Aries, the DryCore pad doesn’t really feel a lot completely different in any respect. Which is to say it’s very comfy. Given the temperature exterior, I haven’t had an opportunity to check out the sweat-channeling skills, however I’m fairly excited to see if it really works as marketed.

Total, the Aries does really feel a bit narrower than the Aether which can have an effect on your match relying on the width of your head and for those who put on hats beneath. I’ve at all times been a medium in Giro, and that continues with the Aries. The primary few rides make this really feel like a worthy successor to the Aether.
Giro Aries Pricing, Colours, and Sizing
Impressively, the Aries is cheaper than the Aether on the time of launch, with a $300 price ticket. You will discover the Aries in 5 colours (together with the black-to-grey fade, and blue-to-purple prismatic colours proven above) and S, M, and L sizes.

