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Giro Eclipse Spherical helmet claims a new precedent in speed and cooling

Giro Eclipse Spherical helmet claims a new precedent in speed and cooling

Giro Sport Design has launched the new Eclipse Spherical helmet, claimed to be both the fastest road bike helmet and feature the most effective ventilation…

Tuesday, Mar 01

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Giro Sport Design has launched the new Eclipse Spherical helmet, claimed to be both the fastest road bike helmet and feature the most effective ventilation among aero lids on the market.

This is the helmet we first spotted in March 2021 , on the heads of Groupama–FDJ and Canyon//SRAM riders.

The Eclipse has an aero-profiled design with 14 deep-chanelled vents. Factoring in Giro’s ‘Spherical Technology’, with a two-piece shell and MIPS protection , safety is also central to the Eclipse’s design, according to the brand.

The helmet is a good weight, too, at 275g (claimed weight, size medium), but you’ll need deep pockets. The Giro Eclipse Spherical retails at £239.99 / €259.95 / $250 US / AU$429.99. Designed for speed

In-house wind tunnel testing during the Eclipse’s development apparently allowed Giro’s designers to optimise the shape for aerodynamic efficiency across a range of wind angles.

The resulting shape of the outer shell was then pitted against a range of helmets, including other offerings in the Giro range and competitor brands’ aero road helmets. Giro hasn’t stated which competitor helmets the Eclipse was tested against or how many.

Giro claims a 14-second advantage over the closest anonymous competitor over a 100-mile course, ridden at 25mph / 40kmh, with 80 per cent in a “typical riding position” and 20 per cent in a “head-down riding position”. This is using wind-averaged drag.That may seem like a relatively small difference (and ambitious riding stats for your average cyclist), but the advantages do grow.Giro claims the Eclipse is more […]

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