Offered in three sizes and in five colors, the Helios is available now. At $250, the Helios is still expensive, but it’s $50 more affordable than the Aether without much of a trade-off. Perhaps most importantly, the Helios brings Spherical tech within reach to more riders with a lower price tag. The cooling power and comfort of the Roc Loc 5 Air fit system should make it a great option for long days in the saddle, and the added protection of the design should also make it a solid options for getting after it on gravel.Ĭlaimed weight for a CE certified medium is 250g. Really, the Helios was designed to be a great all around helmet whether that means on the road or gravel. In terms of aerodynamics, the Helios actually has a slight advantage over both the Aether and the Synthe, even though it was not designed to be an aero helmet. As usual, cooling efficiency is tested at ‘The Dome’, which is Giro’s own test facility which includes tools like their Therminator head form with 15 different thermocouples. The Helios employs 15 vents with Wind Tunnel internal channeling to bring it within 2% of the overall cooling efficiency of the Aether. Compared to the Giro Aether Spherical, the Helios lacks the Aura reinforcing arch, so the Aether still has the edge in ultimate ventilation. The ball-and-socket design moves the slip plane away from the head and prevents any contact with skin or hair, while maintaining the redirection of impact forces from your brain.Īlso, without a slip plane to design around in terms of how the helmet fits on your head, Giro is able to drastically improve the ventilation. Since the helmet is constructed of two halves, Giro can employ their “progressive layering” which uses different density foam liners to cover both slow and high speed impacts. In terms of helmet construction, this has a number of advantages that make the helmet safer, cooler, and more comfortable. This design separates the two halves of the helmet and sandwiches the MIPS technology in the middle. Spherical relies on a ‘ball-and-socket’ design which is exclusive to Bell and Giro. Just as suspected, the Helios is the latest in Giro’s line of helmets equipped with Spherical Technology powered by MIPS. 149.90 Giro Helios Spherical MIPS Helmet Great : BEST TECH See our analysis othercanonical See Price Analysis: The Giro Aether - Small was loved by reviewers at, a highly trusted source that performs reliable in-depth testing. But the time has finally come for Giro to unveil the all new Helios Spherical. Without any details, we were forced to wait. More than just a new shoe, sharp eyed readers noticed something else – a new helmet. The final touch is our Roc Loc 5+ Air fit system, featuring 3-way fit tuning, that allows for easy adjustment in seconds.Earlier this year, Giro released their Regime road shoe. The stunning silhouette is formed by a sleek six-piece shell that surrounds a series of massive vents, with added structural reinforcement via a shatter-resistant AURA reinforcing arch. Our proprietary Spherical Technology is integrated between the layers of EPS foam, instead of against the rider's head, giving riders the benefits of Mips® without obstruction to comfort or cooling power. Inside the Aether Spherical, a dual-density EPS foam liner helps manage a wide range of impact energies, while also boasting deep internal channeling to provide cooling airflow. Details From the elegant silhouette of its industrial design, to how this helmet manages impact forces, the Aether Spherical is a testament to performance innovation. From the elegant silhouette of its industrial design to how this helmet manages impact energy, the Aether Spherical is unlike any helmet ever created and a true testament to performance innovation.
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