Collection: Giro Bicycle Helmets

When every watt counts, and when aerodynamics and comfort must be aligned, the Giro Aerohead is one of the most accomplished choices on the market. It was created with one purpose in mind: to help triathletes and time trial riders push their time to the limit. At Transition Zone, we handpicked the Giro Aerohead as our only Giro model because it has proven itself time and time again in the wind tunnel, on the Ironman course, and in WorldTour conditions. It's a helmet for riders who don't want to leave anything to chance.

Giro is an iconic name in the cycling world, and the Aerohead is their flagship helmet for triathlon and time trials. It’s a helmet where every curve, material and feature has been chosen with performance in mind. Developed with extensive aerodynamic testing and feedback from professional athletes, the result is a helmet that cuts through the air while protecting your head with comfort you can actually wear for hours. This is where the Aerohead sets itself apart from many other TT helmets – it’s not just fast, it’s also realistic to use over longer distances.

The Aerohead combines a shorter, more compact profile with a wide, rounded front, which minimizes turbulence and reduces drag over the shoulders. It's no coincidence that you see this particular helmet in transition zones around the world - it's among the fastest on the market, especially in varying weather conditions and under real race conditions. The helmet is made of polycarbonate and reinforced with in-mold construction, which ensures both low weight and high shock absorption.

The integrated visor is one of the Aerohead's most distinctive features. It has a magnetic attachment, making it easy to put on or take off during a race - and it has optical quality that provides a sharp, distortion-free view from all angles. The visor is designed to also improve the aerodynamic profile and give your eyes optimal protection from wind, rain and insects. It's all well thought out and tested for the conditions a triathlete actually faces.

One of the biggest challenges with aero helmets is heat. Giro has solved this with a special ventilation system that allows for efficient airflow without compromising aerodynamic performance. The vents are strategically placed to provide cooling without creating turbulence – meaning the helmet feels comfortable even in the summer heat, and you can keep up the pace without overheating.

The fit is precise and easy to adjust with the Roc Loc Air system, which provides millimetre-precise adjustment in both height and circumference. The helmet sits snugly and securely, which is crucial in a discipline where head position has a major impact on your overall aerodynamics. Many triathletes find that the Aerohead feels less claustrophobic than other TT helmets – and that’s a major plus when you’re performing under the physical and mental strain of a race.

At Transition Zone, we have chosen to only carry the Giro Aerohead because it is a helmet we can 100% vouch for. It is a perfect fit for triathletes who prioritize both speed and functionality, and who want the best possible starting point in the race against the clock. Whether you are preparing for your first half Ironman or fighting for seconds in a full distance race, the Aerohead is a piece of equipment that can make a tangible difference.

We have it in stock in our store in Aarhus and online, and we're happy to help you find the right size and version. You can also combine it with other race gear from our range - we've tested it all ourselves, so we know what works. Buy your Giro Aerohead from us and feel the difference already on your next training ride. It's not just a helmet - it's a performance tool that's built to win.